TERRIBLE BILLING by RAIN!!!!

My debit date is the 1st. However, Rain debited my account on the 25th at 3am before my salary was paid in. The debit bounced and they immediately cut my internet. I called the call centre and checked their app. They both said that my debit date was the 1st, but that I had to make a payment first before they could help to change any dates. I told them that I do not want to change dates, I just want them to debit on the date I specified. The operator is from a foreign country and could hardly speak English. I had to spell every word. I did a manual payment, and my service was thankfully restored immediately. Now on the 2nd, they AGAIN tried to debit my account, and they CUT MY INTERNET AGAIN. When I log into my account it says I have a balance of R0.00 due. What on EARTH is going on with these people???? Last time they said they sent a private reply to my email, but the email RESOLVED NOTHING.