Customer service

I recently took a contract phone with Vodacom, second month running the debit order is not going onto my account automatically, I have to make a manual payment, they have my account details and the debit order date, but they don't debit the account. So annoyed because they are ruining my credit history. I've been trying to contact them via their method of contact, I keep getting the useless bot that is limited in providing assistance. So disappointed with their service they don't even deserve a single star rating.