SMS for incorred Credit card customer

I have recently receivecd a new cell number through FNB, this is a NEW NUMBER, i keep getting sms for Credit card purchases that are not my account. I called FNB to amend or remove my number from their system as I do not hold this credit card, I was transfered from one person to another with no actual resolution.

The customer who actually uses the card is clearly not getting SMS, i just want this number removed from that persons profile, as it is not their