No help from their ***** department

Worst service from FNB. I was a victim of identity theft and someone opened an FNB account under my name as well as took out a loan after having *****ulently created an ID. This came under my attention in September last year, I immediately went into a FNB branch to inform them. They showed me the documents used to open the account which was all done virtually via their website, I provided them with proof that it was a **** ID used. The matter was reported to their ***** department for investigation and until today no feedback has been received from FNB, the accounts are still under my name and I have people phoning me demanding payment for the accounts being in arrears. When I follow up with FNB they just keep saying that the matter is under investigation all whilst my credit score is being negatively impacted. It has been over 5 months, no help from FNB to get the matter sorted all whilst I am in this position due to their negligence.