Builders Warehouse 15% discount ****.

My mother who is in the rural areas of King Williams Town went and purchased material worth R16 000 today. I had suggested that she goes to Builders Warehouse as i have seen on their website that you get 15% off first online purchase. Now my uneducated mother who knows nothing about online purchases goes to Builders Warehouse to enquire about the 15% discount. She is assisted by the lady on duty to create an online profile and the lady was kind enough to call me for my email address in order to create the online profile. Now she purchases material worth R16 000 and instead of being assisted further with online purchase she is told to go the bank to make the deposit. She shows the lady the voucher code of the 15% discount and is told go to the bank mama u will get the 15% when u come back. After coming back from the bank she waits from 12 till 15:30 to be told she wont get the discount anymore unless she buys again. If u assisted her to create the online purchase why not assist old ladies from rural areas to buy online so they can enjoy the 15% discount. Me being in Cape Town i have informed her to go back and get her refund tomorrow, as there is no point in dealing with these people. Head office was useless when informed as well.