Somehow placed a 4 team parlay that turned into a 10-team parlay

[EMP19E]

Made a 4-Team Mixed parlay for 100.00 which somehow turned into a 10 team 1100 parlay (Included 100.00 on original parlay) which took my balance negative

Instead of waiting to see what happened immediately contacted my book and things are being adjusted which means Im sure all these will hit but just wondering has anyone ever had this happen and did you play dumb and win or did the book void it? and how does this happen?

Edit:Oh and I have my account set to confirm all bets before being placed and this still did nothing

[Optional]

very weird one.

Had you clicked the other bets at any stage? Could have been a glitch that saw them stuck in browser memory maybe.

Pulling for them to lose for you

[newton0038]

what book? I have my suspicions on what book it is.

[EMP19E]

what book? I have my suspicions on what book it is.

BOL