Delaying deposit

I am having a very unpleasant experience working with betway. I made a deposit to them using my FNB banking app on Sunday 16/08/2020 at around 09h00 am, till this moment my deposit is yet to reflect on my account. I tried contacting their contact centre with no success, I was on line for 5minutes with no response. The only hing close to help I got was on their live chat where I was told to send through my proof of payment which I did yesterday around 11h00 but I'm still sitting with a problem. I did s follow up yesterday in the afternoon and I was "adviced" about other ways to make a deposit that reflects immediately. Im really agitated and frustrated with this company, I mean what logic is there here?! I have previously deposited using the same method and it reflected in an instant, now I must sit 48hours + waiting, having even sent the proof of payment.