Originally posted on 12/10/2018:

I received this reply yesterday but forgot to update. This is verbatim from Jetwin:

Dear Customer,

JETWIN will launch the newest version of sportsbook next week. We need
all open bets to be settled before this update, this is why we decided
to switch off sportsbook module temporary.

Our powerful engine will offer the ultimate 24/7 sportsbook with over
35,000 in-play matches a month and more than 2,000 proprietary betting
markets.

I guess it's just wait and see for Jetwin.