Disgusting attitude to customer meaning me

Bought 1000 unipin at spar yesterday and when I put it in the meter it Said it’s not allowed I have a different meter when I took the voucher back to spar this afternoon they did not want to refund me my R1000 cash he said he can e mail the people for a refund but takes them 4 days I said I got no power at home so what do I do now he says he can’t help me he has such a attitude this morning grumpy old man how ever i phoned them myself and in a matter of 20 min my R1000 was in my account don’t just assume they can’t help you go the extra Miele for the client his attitude was appouling