HORRIBLE SERVICE

for the past few days been trying to get help from Telkom to change my debit order to my new acc for my contract , such a hard and painful experience, the client services numbers sent me to WhatsApp and hang up , no option to update my banking details on their stupid what's app, chat Oh Mg God all agents don't respond , the chat went to Sibongile Wendy Mnguni she did not respond , your service sucks i will cancel this contract

I NEED MY BANK DETAILS CHANGED OR WE WILL HAVE AN ISSUE CAUSE MY OLD BANK ACC. IS CLOSED !!!!!!