Business Line

have been having a business account with telkom for 5 years since 2018 and not even once have i skipped a payment, in june this year 2023 i was invited to an upgrade from copper to wireless and i was told that there won't be any additional cost that i will pay my monthly as i have been, payment amount won't be affected i opted to the change even though i did not have any problem with the previous one, only to find out that after i received the dlink and after it was activated i started to struggle with my line cant receive calls or even make calls and took initiatives to send an email to the sales agent who sold the Idea to me till to date i've never received any assistance however that is not the reason for my email due to that problem even the internet started to loose connections, we called a passby openserve person to check if theres any problem on the pole outside and he requested that we call business line only to find out that my account is been suspended i asked the reason and am told it is in arrers but every the 1st of every new month telkom is debiting account and has never skipped a payment and the guy on the line whom i forgot to take his name said my account is been in arrers for 5 years since from day 1 so am asking how because my contract has been and still is for R900.00 per month and had been paid even this september the 01st 2023 telkom was paid so am losing business due to telkom miscommunication i was not aware of any of this

My questions are as follows 1. How am I in arrears while paying every month? 2. Why was I invited for an upgrade if my account is in arrears ? 3. how can i be in arrears for five years not been notified not even once ? 4. how also am i supposed to continue with telkom if this is how it operates ? 5. When the amount that I am supposed to pay monthly wasn't it telkom's responsibility to let me know and to also deduct the supposed amount ?