OnLuck casino - Casino asks for a document that doesn't exist

On 2.5. I created an account on Onluck.com and deposited 50€ via Skrill to get the 100% welcome bonus.

I managed to get my bonus balance to 200€ before I was suddenly unable to play anymore. When I tried to log in again it told me my password or email was wrong. I was very confused and actually managed to change my password just to get the same error again. At this point I contacted support who told me my account was closed due to a management decision, I don't remember the original wording but there was never any further elaboration other than saying it was a management decision.

I asked how I could get at least my deposit refunded and support told me they would contact me. It took three days but on 5.5. I got an email that I would need to send my ID, proof of address, and a screenshot of Skrill account details. What was the error here was that the Skrill account they had listed does not exist, as I don't have a Skrill account under the email I use to register for casinos, but instead, I have a Skrill registered with my personal email.

I sent them both the ID and Proof of address once it was made clear those were required to get the refund, and I also sent them a screenshot of the actual skrill used to deposit. What I got as a response was the same message asking for a Skrill screenshot for an account with the same email as I had registered with. I made it clear to them that the account I had sent the details for was actually the one I had deposited with and that the account they wanted the screenshot for doesn't exist. I also sent them details of two payments that either could be the deposit.

I had made another deposit of 50€ around the same time so I wasn't 100% sure which one was to OnLuck.com, but I am 100% one of the two was the actual deposit I made to OnLuck.com. At this point, I just want the 50€ I deposited back, but any message I send to them seems to get the same copy-pasted response asking for the Skrill account that doesn't exist.