cellc never debited my account now they blacklisted me

I took a prepaid contract with cellc in Jan 2020. PROBLEM NUM 1: only the phone was delivered no sim card when I phoned they told that I need to buy a sim card call them to do to sim swap so i decided to use my old cellc number i mean they cant deliver sim swap so why should I spend money on buying a swip swap and money to call them to swap it?? The problem, the end of January I realized that they didn't debit my account so I emailed them inquiring why they did not debit for the contract I received an automated reply that they will get back to me. and no one got back to me problem 3: February came my account again not debited emailed still received an automated reply. I then tried to call them i couldn't get a consultant on the phone I hung up after 20minutes. March,Apri,May,June<July,Aug,Sep< Oct ,Nov, December passed no contact from call center i mean how are you not picking up that the account is in arrears for a Year and you dont contact the customer or atleast email me back or something.

Januarry 2021 they call me and say I owe them 13000 and i nedd to pay it as a lump sum, so i explained to them that i have tried contacting and had no luck becuase i wanted to know why they were no debiting my account, i then told the consultant that i cannot pay it as a lump sum but i can pay it off R 300 until i finish, she then said she will speak to her supervisor and get back to me.

February passed no call, March, no call, April, No call then in May i check my credit score and realised it has gone down because ****** cellc has blacklisted me the account as a default.

I mean who blacklists somebody without a written warning? I have been with cellc for many many years they should be ashamed of how they have treated me.

Please note my lawyer will be incontact with you please explain to her how you blacklisted me without a warning letter and how i lost on the added service of the contract when you did not deliver the sim card. you should be ashmaed and remove my name and write off the amount as it is not my fault that you decided not to debit my account. Calls are recorded when you apply for a contract and if you listen to them i was asked for my banking details and the debit date.

Regards,

Kali Khunou. ***