Poor billing system and updating of details on Portal

Since i have updated my card details beginning of January 2020, every month the billing system fails to debit my card and every month i get notified that my internet will be cut, then every month this occurred i logged a ticket they say update the details on the portal i did this every time and now my details are correct but the debit from my card still fails. I am frustrated of this service from afrihost as a customer for more then 5 years will multiple products apart from fibre. I feel like they could do much more to help and not just say they going to cut your internet because the account is not paid due to the portal not updating the products