NO ANSWERS THAT MAKE SENSE

I have been paying Lancet Laboratories for 15 months via EFT on my profile. Now cannot since end of <br> October because it is pre-approved . To pay them I NOW HAVE TO DO A ONCE OFF PMT. I phoned <br> Lancet and Nedbank Call Centre and cannot get an answer as to why I cannot put them on my profile<br> instead on making a once off payment every month. What is the matter? In this day and age <br> paying them once off every month is a pain.