Disgusting service from DSTV Accounts

Again for the second month in a row I am having difficulty with the accounts dept. I have been paying my subscription regularly via EFT until this month. I simply cannot succeed in doing a payment as during the EFT process, I get an error message " The value is incorrect for Multichoice SA Dstv subs DSTV account number " Now the account number has been added to my monthly EFT payments for in the order of three years and I have had no difficulty in paying via this method and account number. So on 23 -08-2018 I send an email with a screenshot of the problem to two different ladies in the accounts dept with a followup on 24-08-2018 and until today I have not had a response. I am not sure if this is one of their tactics to get subscribers to sign a debit order or not but due to a previous experience where they debited my account with a totally inflated amount, I shall not go debit order! What is simply annoying is that a subscriber gets ignored as though we do not partake in paying their salaries. Shame on you !