ABSA cannot solve an internet banking problem

For 2 months I have been trying to load Multichoice as a beneficiary on my internet banking. Error Code reads \Incorrect account number". This is NOT an incorrect account number as I have had to make manual payments to Multichoice (standing in a queue at Pick+Pay) and my account number with Multichoice IS CORRECT! Went to Absa Oakfields Branch to have it soorted out and they pass the buck and say it is a Multichoice error. IT IS NOT A MULTICHOICE ERROR!! Went back to Absa the next day and was told the problem would be sorted by the next payment date. Well"