***** on my FNB Account after ******* SIM swap done on my MTN contact.

16 March 2021- Culprit made a SIM swap on my MTN Contact where by he accessed my FNB account a day after I got paid and used the whole balance. I've been struggling to get my number back when I call the call center I'm told I failed authentication I tried 3times,then I was told to visit the branch when visited the branch they said they don't do the Sim swaps I must call the call center they must give me their email to send affidavit and ID copy. Call the call center they said they accept the documents as they don't know if I'm the culprit myself but the really Culprit managed to do a Sim swap within seconds and now to top it all the Culprit is still using my we tried calling my number 2 times this month I've been using that MTN number since year 2000. FNB now refused to pay my money they said the OTP went to my contact but that time the Culprit authorized everything now they need a letter from MTN confirming a SIM swap was done when I call the MTN ***** line I'm told it's a wrong number then I called MTN call center they confirmed that's their ***** line I need to use that. I explained to the lady when you call the call center it refers you to the branch then branch back to call center I just need some assistance for FNB to pay my money the lady just said you need to visit the branch we don't issue letters. Really need your help I've beenstruggling with both MTN and FNB.