No response from ***** depatment

On 10 April 2021 I had R700 cash withdrawn from my FNB credit card. As I never draw money from my credit card I reported it and my card was stopped immediately. When I phoned to follow up I was told that my credit card was linked to another 1 of my accounts and that is how the transaction happened. When I pressed them to get answers as to which card they could or would not tell me. My credit card is only linked with my Petrocard - nothing else. At the time of the withdrawal I was in Franschhoek at a wine farm and at no time was I anywhere near an atm. I have also asked them where the money was withdrawn and they are unable to give me answers. Yesterday I had another attempt to use the card - got an incontact sms to that effect, but naturally it had been stopped. Trying to get through to the ***** department is like pulling teeth - I have been holding on on more than 1 occasion for 10 Minutes plus to be told they're experiencing high call volumes. I am so disappointed in FNB as up to now I have had fabulous service from them. Would be so nice if someone can actually give me some answers instead of telling me no ***** has taken place when it quite clearly did.