We have detected that a SIM swap has recently...

I logged into ABSA internet banking this morning, in a rush to buy some much needed airtime only to be greeted with this message:<br> \We have detected that a SIM swap has recently been performed on your mobile number and as a precautionary measure we have disabled certain transactions for your protection. Full access will resume within 36 hours. You may contact the Absa Online Contact Centre on ***for any queries."<br> <br> This is the 1st time I hear of this"