Fradulent charges from Bolt

I am based in Johannesburg, and just after having supper received a call and sms from my bank checking if I put through transactions with Bolt using my credit card. Thing is, I do not use Bolt, nor have I registered for Bolt or even have their app installed on my devices. I quickly checked my account through internet banking and realised that more than once transaction was put through one after the other. The amount was very high. I immediately switched the card off and changed all limits to zero. I than called my banks ***** line and reported the case. A case was opened and a reference number was provided. The agent cancelled my card immediately after confirming my identity and that the transactions were not done by me.

Here is the strange part, I last used the card in April 2021, the pin of the card is not written down anywhere, only I use the card and that too, rarely. The only other place the pin is stored is within the banks databases.

So how did these people manage to charge transactions to my credit? Apparently I am not the first person that this exact scenario has happened to.

Very shady.