YesPlay withdrawal is a nightmare

I topped up my YesPlay account with R7000. I chose the Debit/Credit card option on YesPlay App to top it up...I played a few games and won R10 000...I decided to withdraw the funds and that's when the horror of my life started. I was told I should email Bank Statement as proof of payment so that they can see that I truly topped up my YesPlay account with R7000 before I won that R10 000.I immediately sent it...Than 3 days later I got a response from YesPlay saying that they no longer want Bank Statement, they want PROOF that I really did deposit R7000 in my YesPlay account before winning the 10k...I was abit confused because Bank Statement actually is a form of PROOF that the transaction was made and appears on it..The Lady admitted that they see the transaction on their system but They told me they want Payment Notification....how can i be able to obtain a payment notification when transaction that I made was an ONLINE PURCHASE transaction using the Debit/Credit card option from their YesPlayApp?? Long story short, this was intentionally done so that I can't withdraw my winnings.To make matters worse, I'm a new client to YesPlay but I NEVER received that 100% bonus for 1st customers that they're always misleading people on.. Betting Sites like Betway and Lottostar are progressing very well because you will NEVER go through this horror that YesPlay is making people to go through..I won't be surprised if they responded to what I wrote now and say " We apologize for what you went through. We shall look into the matter and one of our consultants will contact you on email "...