Bad Service from Sisanda

I ordered a UPS device via chat box and advise the Sisanda that I would be paying for the device via debit order. She advised that I need to make internet payment and send proof of payment to *** which I did. To my surprised yesterday I was billed for my monthly fee and monthly amount included the amount for the UPS device. I have now paid twice for the same device and now I am running around trying to get my refund with no help from webafrica. Can someone please help me get my refund of R1098.