Spam smses everyday, clueless and ride agents

African Bank is sending me spam smses every 3 day, this issue started last week and I actually phoned the number provide on the sms ***) and spoke to a call centre agent who with an attitude told me I could simply just deleted the smses and he does not know what the big deal is ( this was after I had provided them with both my cell number and my ID number and was informed I had no account with them. Todat I received 2 of these smses advising me of legal action that might be actioned against me. So I again phoned the CPT number: *** and spoke with yet another useless agent who advised me \well they haven't phoned you yet just smsed you....just delete them"and apparently they cannot remove my number form their mailing list as they are unable to find it on their system.....then HOW ON EARTH ARE THEY ABLE TO TEXT ME????!!!"""