Jackpot City Casino - Account closed and apparently under review for too long now

Last Monday I created an account with Jackpot City, after depositing $300 via echeck, I played for the remainder of the day, won a little over $7000 and all of a sudden during my play, I was disconnected from my account. At this point I had submitted a request for a withdrawal of $2000.

After trying to log back in, I couldn't. I messaged Jackpot City through live chat and was told my account was blocked due to the echeck being returned. I told them there was no way it could've been returned since it wasn't even pulled from my bank. I was assured it would be cleared up within 24-48 hours.

Thursday morning comes and I can see that the echeck successfully cleared and I messaged Jackpot City again to ask if I had access to my account and they came back and told me that the operations team had to verify that it received the money.

Friday morning I message and ask what the hold up is and was told that they needed to verify my winnings.

It is now Monday morning and I messaged again to see what the hold up is, and the person I was speaking too told me they have no idea why my account is locked since there are no notes on my file.

What is the hold up?

Seems like they don't want to pay out my winnings and keep trying to stall.