Pathetic service.

I need a fibre company where when I need to update my banking details I can do so without my line being disconnected for days. I changed my banking details 4 weeks in advance before my debit order, had to pay a R1 to confirm my bank and received an SMS to say my details were updated successful. Comes the 2nd of January I'm unable to login due to my payment being unsuccessful, I called and they are unable to help me telling me to log a call back request after 30 minutes hoping my payment went off, I am still without WiFi.