On the 06th of November, I received R45600 on my Standard Bank account from Busi, whom we're all in a stokvel with, she manages the money

On the 06th of November, I received R45600 on my Standard Bank account from Busi, whom we're all in a stokvel with, she manages the money. A day or two later, Standard Bank blocked my money from coming in or out, they claimed, they suspected ***** and required proof of payment of where the money actually came from. I sent the proof of payment by Email, with no response whatsoever. I called their landline again, but they dismissed me. To release my funds, they required a proof of payment but now that I've provided the proof of payment, I'm being dismissed. And I really need those funds they blocked to pay for my necessities. Thank you.