All i want if for my address to change!!!!!

I have been to two branches within the canal walk area in cape town to change my STATEMENT address, i have been on the phone with one of the consultants at the call centre as well with regards to this... all i want if for my POSTAL address to be change... iv had so many issues with telkom as a whole!!!!! Im so tired of dealing with petty things. ... first of all. I cant understand why my statement reflects a postal address that has NEVER been provided to telkom. So how do u expect me to handle this????? . i really dont have any patience anymore, its a really simple request, and i have complained about telkom before, ... what on earth sould i do???