HORRIBLE SERVICE AT TELKOM

took a contract for wi-fi with Telkom during lockdown last year, so I changed banking details in Feb I then notified Telkom of this change and they did not update my details and in March the debit order did not go off my account when I called them to find out why my instruction wasn't carried out they gave me a bank account number to pay the money into, then in June they debited my account with R479.74 instead of R139 I reversed this and paid them R140 into the bank account by this time they had de-activated my account then I called them they reactivated the account and sent a message saying my query had been resolved,2/3 days later account was de-activated again saying I owe, when I called to find out they said there is a R204 charged for an unpaid debit (who charges R200 for an unpaid) and I explained what had happened and asked why was I not informed about this R200 fee at the beginning of the contract because surely I would not have agreed to pay R200 for an unsuccessful debit order, who would want to do that, why was this hidden from me, consultant said she doesn't know even other customers have complained about that,I refuse to pay R200 for a debit order that they did not carry out, so they have debited my account with R541 that doesn't even add up because I have been paying the account , I was told they will investigate and get back to me with feedback I have heard no feedback on the investigation until today instead they have de-activated my account since and debited my account with a ridiculous amount, what kind of a **** is this!!!!!!