WebAfrica, you’re *****ing from me

WebAfrica have been *****ing R50 from me each month for a couple of months. They disconnect my internet every month, saying that my account has got insufficient funds whilst the account has the funds. I’ve been charged R50 extra every month to reconnect my internet whilst I know of a fact that I’ve got funds for their service as I have a bank account that was solely made to pay this subscription. My service has been disconnected right now, yet my account has more than enough funds to pay this subscription