They said I violated their ToS by using a software (!) called Martingale 
Here is my full bet history. Decide for yourself if this is Martingale:
Yesterday they told me I would receive my money within the next 5 days:

Start Time: 10/29/2019 13:34:30
End Time: 10/29/2019 13:56:49
Operators: Julian
Transcripts:Operator Julian has joined the chat.
[13:34:30] Julian: Hallo,wie kann ich helfen?
[13:37:00] Bastian: Hallo, können Sie mir bitte den Paragraph nennen, gegen den ich verstoßen haben soll?
[13:37:16] Bastian: Can we please continue in English?
[13:37:26] Bastian: or can you connect me to the English support, please?Operator Julian has turned on Auto Translation.
[13:39:14] Julian: I have to take a look (Translation)ich muss kurz nachschauen (Original)
[13:44:19] Julian: They used software to manipulate the system. That's why the profits were canceled (Translation)Sie haben eine Software benutzt um das System zu manipulieren. Darum wurden die Gewinne gestrichen (Original)
[13:44:39] Bastian: Das ist nicht wahr (Translation)That is not true (Original)
[13:45:00] Bastian: Können Sie Ihre Annahmen beweisen? (Translation)Can you prove your assumptions? (Original)[13:45:45] Julian: Our IT department has found that a software called martinglae was used (Translation)unsere IT-Abteilung hat festgestellt, dass eine Software namensmartinglae benutzt wurde (Original)
[13:46:30] Bastian: Bitte nachweisen (Translation)Please show proof (Original)
[13:46:50] Bastian: Ich kann garantieren, dass ich zu keinem Zeitpunkt Ihrer Website Software verwendet habe (Translation)I can guarantee I did not use any software whatsoever at any point of using your site (Original)
[13:51:29] Julian: If you wish to complain further, you must send an email (Translation)it's a well documented system that isn't allowed on our website If you wish to complain further you needs to send an email (Original)Operator Julian has turned off Auto Translation.
[13:51:58] Julian: it's a well documented system that isn't allowed on our website
[13:52:24] Bastian: But I didn't use it. Your assumptions are wrong
[13:52:40] Bastian: I made sports bets
[13:53:15] Bastian: I didn't use the Martingale system. Martingale means that you double your stakes after you lost a bet. I didn't do that. Please check my betting history.
Operator Julian has turned on Auto Translation.
[13:54:43] Julian: Unfortunately, there is nothing I can do. Please send an email to the Finance Department (Translation)da ist leider nichts was ich tun kann. Senden Sie bitte eine Mail an die Finanzabteilung (Original)
[13:54:51] Bastian: Wenn dies Ihre endgültige Entscheidung ist, werde ich den Fall an einen Anwalt in Curacao weiterleiten. (Translation)If this is your final decision, I will forward the case to a lawyer in Curacao. (Original)
[13:55:16] Bastian: Außerdem haben Sie nicht den vollen Betrag meiner Einzahlungen zurückerstattet (Translation)And also, you did not refund the full amount of my deposits (Original)
[13:55:30] Bastian: Meine Einzahlungen betrugen 50, 500, 200 und 300. Sie haben jedoch nur 200 zurückgegeben (Translation)My deposits were 50, 500, 200 and 300. But you only returned 200 (Original)
[13:56:42] Julian: Please send an email to the Finance Department (Translation)Please send an email to the Finance Department (Original)
The visitor has left the chat.
The chat is ended. (13:56:50)
Tags: Whitelionbets, Whitelion, White lion bets, White lion, scam, fraud

Here is my full bet history. Decide for yourself if this is Martingale:
Yesterday they told me I would receive my money within the next 5 days:

Start Time: 10/29/2019 13:34:30
End Time: 10/29/2019 13:56:49
Operators: Julian
Transcripts:Operator Julian has joined the chat.
[13:34:30] Julian: Hallo,wie kann ich helfen?
[13:37:00] Bastian: Hallo, können Sie mir bitte den Paragraph nennen, gegen den ich verstoßen haben soll?
[13:37:16] Bastian: Can we please continue in English?
[13:37:26] Bastian: or can you connect me to the English support, please?Operator Julian has turned on Auto Translation.
[13:39:14] Julian: I have to take a look (Translation)ich muss kurz nachschauen (Original)
[13:44:19] Julian: They used software to manipulate the system. That's why the profits were canceled (Translation)Sie haben eine Software benutzt um das System zu manipulieren. Darum wurden die Gewinne gestrichen (Original)
[13:44:39] Bastian: Das ist nicht wahr (Translation)That is not true (Original)
[13:45:00] Bastian: Können Sie Ihre Annahmen beweisen? (Translation)Can you prove your assumptions? (Original)[13:45:45] Julian: Our IT department has found that a software called martinglae was used (Translation)unsere IT-Abteilung hat festgestellt, dass eine Software namensmartinglae benutzt wurde (Original)
[13:46:30] Bastian: Bitte nachweisen (Translation)Please show proof (Original)
[13:46:50] Bastian: Ich kann garantieren, dass ich zu keinem Zeitpunkt Ihrer Website Software verwendet habe (Translation)I can guarantee I did not use any software whatsoever at any point of using your site (Original)
[13:51:29] Julian: If you wish to complain further, you must send an email (Translation)it's a well documented system that isn't allowed on our website If you wish to complain further you needs to send an email (Original)Operator Julian has turned off Auto Translation.
[13:51:58] Julian: it's a well documented system that isn't allowed on our website
[13:52:24] Bastian: But I didn't use it. Your assumptions are wrong
[13:52:40] Bastian: I made sports bets
[13:53:15] Bastian: I didn't use the Martingale system. Martingale means that you double your stakes after you lost a bet. I didn't do that. Please check my betting history.
Operator Julian has turned on Auto Translation.
[13:54:43] Julian: Unfortunately, there is nothing I can do. Please send an email to the Finance Department (Translation)da ist leider nichts was ich tun kann. Senden Sie bitte eine Mail an die Finanzabteilung (Original)
[13:54:51] Bastian: Wenn dies Ihre endgültige Entscheidung ist, werde ich den Fall an einen Anwalt in Curacao weiterleiten. (Translation)If this is your final decision, I will forward the case to a lawyer in Curacao. (Original)
[13:55:16] Bastian: Außerdem haben Sie nicht den vollen Betrag meiner Einzahlungen zurückerstattet (Translation)And also, you did not refund the full amount of my deposits (Original)
[13:55:30] Bastian: Meine Einzahlungen betrugen 50, 500, 200 und 300. Sie haben jedoch nur 200 zurückgegeben (Translation)My deposits were 50, 500, 200 and 300. But you only returned 200 (Original)
[13:56:42] Julian: Please send an email to the Finance Department (Translation)Please send an email to the Finance Department (Original)
The visitor has left the chat.
The chat is ended. (13:56:50)
Tags: Whitelionbets, Whitelion, White lion bets, White lion, scam, fraud