Mobi money refund

I took 3 loans with finchoice and settled mobi money after I spoke to their consultant by the name of Victoria Smith who advised me to pay and that my account will not be debited. I paid R2400 to settle my mobi money account so that I can concentrate on other accounts. And still my account was debited for mobi money even after I settled. I have been trying to find choice and got no help for my R2400 to be credited into my account. I am not sure if I should continue to trust finchoice because now they don't want to bring back my R2400 that I deposited via EFT. I need that refund and my settlement letter.