Mr Price Sport online - They are clueless.

I purchased 2 masks and refill filters from them and paid the 257.97 (Order nr: ***). They delivers only 1 mask and the refill filters and send an invoice for 179.98. I tried to phone but they said it might be a glitch on their side or they might have been out of stock or.... and they think they would have refund me. Well, If they told me they only have 1 in stock, I would have cancelled the order. I wanted 2, that is why I ordered 2. They want to play with the big online markets, but are totally clueless on how to do business. If you cannot fulfill my order, it is MY CHOICE on what I want to do. NOT YOUR DECISION!!!!!