Telkom bad service and theft

I have been told my debit order come off on the last day of every month , October however telkom tried to take my debit order on the 30th not the 31st. When my debit order bounce - the very next day I went into telkom and checkers and paid my money as on my INVOICE it states the money due on the 1 November 20201. I paid my money on the 31st October. Now i receive an invoice saying I have R50 credited to me. I knew something was wrong because that is not possible. I go into telkom and get the worst customer service - telkom Hillcrest - the lady was jjst not interested, and I was told that at the end of November they will charge me my normal R250 AND an extra R202 as the money was not laid in time, however they debited me the day before due and I paid a day before the invoice said it was due.

I just wish I could be contacted by someone who I can actually when a discussion with and show the paper trail I have instead of the lady at telkom who was slap happy and didnt want to know me as it was a saturday.