My funds frozen without explanation

Yoco has been paying me my money and all of a sudden I do y get my payout and when I call to find out was told my account was frozen due to suspicious behaviour.I bought the machine 2 weeks ago and at first I struggled to process payments and when I called Yoco Daren advised me to delete the app and install it again.that was after I tried to make with virtual credit cards and the system told me I exceeded limits or the Bank has rejected my card. downloading the app again I was able to make payments with no difficulties and we're all paid out. Monday I uploaded More payments with no payouts. When I call this morning SIBUSISO MTHUMZI told me my funds were frozen and will have to wait 7 working days for investigation. That was all he said with my money over R15k. I called again and Rati Mashego took the matter as a joke with giggles trolling me He see suspicious behaviour with my account .I asked for his manager or head of risk department.he out me on hold and returned saying the whole department is not available. I called again after 6 hrs with no response on emails I sent.Sibusiso story changed to 14 days of investigation and 72 hrs to respond to my email. I asked Rati to ask Kaefezwa Shoko to call me as his manager.and Siyasanga Mbiko as the head of risk department to call me.6 hrs down the line they still can't be reached and unfortunately I will just have to wait for investigation to be completed. Here we are talking about my money.The best they could have done was to suspend my account while busy with the investigation and reject my payments instead of accepting my payment and freeze them without communicating with me .Am taking the matter up with PASA as this is unacceptable.even at The reserve Bank am sure we can get help.but with Yoco the whole management is out of reach. Very disappointed. Will get FNB card machine and leave Yoco alone