Normally I would encourage you to complain about your situation to my colleagues, the mediators. However, their ability to assist in this situation may be very limited because they can mostly only observe the upcoming progress, based on my understanding. I'd hate to put you through the complaint for nothing.
How about taking a more direct approach?
Can you send something more official to the casino support email?
EG:
"Hello,
My withdrawal was approved on January 8th via Apple Pay card, and I was provided with an ARN code.
I have contacted my bank, and they confirmed that they cannot locate any transaction related to this ARN.
At this point, I am requesting official confirmation that the withdrawal has actually been sent, not just approved internally.
Please provide one of the following:
– official transaction confirmation or receipt from your payment provider
– confirmation showing the date and time the funds left your payment system and were handed over to the card network
If such confirmation cannot be provided, please clarify the current real status of the withdrawal.
I would appreciate a clear response within 7 business days, as without proof of payment, the situation cannot be resolved from my side.
Thank you."
Because to me it seems that the transfer has not been completed, and repeated questions did not solve the matter. Since this casino is licensed in your country, I would use their official response as an escalation to DGOJ, if necessary.