7 MONTHS OF TRYING TO RECTIFY WRONG PRINTED NUMBER ON MY BILLING ADDRESS

I am sorry Telkom, but you are useless. I have struggled since January 2018 (7 months) to just correct the wrong number printed on my monthly bill. I have phoned, corrected it about 3 times via the phone (and each time it is STILL WRONG!). I have even mailed, no response. Tried the online chat option... still waiting for the available friendly agent...

I don't understand how a simple number cannot be changed - it was mistakenly keyed in on your side from the beginning.

CAN SOMEONE JUST CHANGE MY ADDRESS NUMBER ON MY BILL PLEASE?

THE 29 OF THE STREET ADDRESS MUST BE A 31.