Disgusting treatment

I am absolutely disgusted with the way my problem was dealt with. I bought a R 500 Makro voucher from the ebucks store this morning, in order to by our groceries and things we need and when trying to pay, the voucher kept coming up as invalid. When the manager comes to help we find out the voucher is 1 digit short. <br> <br> I called the number on the sms to sort the problem out. Was told I will not be able to use the voucher so will need to pay cash for now. After a frustrating 20 odd minutes trying to get a refund, we speak to the manager, Sara. Sara indicates that the supplier said the voucher was in fact 10 digits long and is still valid, so they cant cancel it or refund me. As a High School Accounting teacher, and having completed Mathematics at Tertiary level, I think I can count to 10.... I was hugely embarrassed at the Makro till, not being able to pay, and then incredibly disgusted when your manager, Sara, insinuates that I was lying about the 10 digits. <br> <br> I have had some very bad experiences, but I have never felt so disgusted by the service and treatment I received.<br> <br> My call reference number: Rc***