poor customer service

Pick and pay has always been my number 1 favourite store but lately iv been getting bad service all thanks to SAM the store manager he showed no interest or dedication into helping me solve my problem out his *********** at his job he doesn't know how to follow the correct procedure his calm and showed no interest into helping me out he has poor customer service my situation was simple and easy me and my brother bought grocery of R1500 we had to take out 750 each to cover it all but only to find out my brother forgot his card but my 700 was already swiped so they voided the food but not my R700 I had to travel 3 times 56KM from my place to potchefstroom only to find out that they machine was off line for the whole 3days they didn't keep any contact with me I literally had to go everyday to remind them...I spoke to the other manager TSHIDI she had no idea of the whole situation all in all it just showed how litely they took my case its been 2 weeks now with no solution head office please help.