Nedbank Stole My Money

On Monday 23rd Feb I purchased airtime from my nedbank internet banking app. 2 purchases of R30 MTN and 1 for R29/100MB Data. Nothing had reflected the entire day. The following day i purchased a R10 MTN just to make sure that the problem wasn't me in terms of wrong cellphone numbers etc. I called MTN and they had no receipt of these airtime vouchers. I called Nedbank, was promised a follow up call but they make you wait 3-5 days just for R100. Bottom line, FNB online recharge worked and the MTN prepaid vouchers that you buy from the garages. Nedbank has ****** R100 from me, no matter the amount and has not lived up to their promise of following up or getting back to you. I also lodged a complaint yesterday on their contact form...and guess what...nothing