Can't create new Ref Number on Standard Bank Site!!??

I have tried paying my account this month only to realise that they are using a new numbering system. And they never told us - only got an explanation of how their accounts work this month. And paid them. Then went on to pay my mom's telephone bill and saw her numbers were different... !!! Then went back and checked mine...also different...!! Worst of all I tried changing it on my Standard Bank site and it wont accept the new EFT ref number!!!!!!! Frustrating. Maybe time to just end my dealings with Telkom????