Absa ***** wrongfully will not pay back ***** money.

I have an Absa queue account. In November 2021 Absa sent me another debit card for the same account, without me asking for one. They activated it without my consent, and told me I now have two cards for this account. I never used this new card for anything, I put it away in a drawer. On 28 February 2022 at 12:53 I received an OTP for a transaction on this new card, the moment I opened the sms on 12:54 to see what the OTP was for, a transaction for R5 500 for "Moonpay" went through on the account. That same minute Absa ***** Department phoned me, and I immediately stated that this was ***** and I never even used this card. Absa ***** now says that thay will not pay my money back, as I approved the OTP. I NEVER approved the OTP, I only opend the sms to see what the OTP was for.