UCOUNT CALL CENTER

i have tried using my ucount card 3 times at Macro, it declines immediately when card is swiped. I phoned call center m they told me there is nothing wrong with my card or macro, it happens sometimes and i need to tell macro tellers to switch their machines on and off . Really??? anyway i did this the 4th time trying to use ucount at macro, the tellers told me that they can not do this and there is something wrong with me card, I know this ,That is why i asked call center to send me a new card when i phoned the first time. They refused, Telling me there is nothing wrong with my card. How can they tell if the magstripe is damaged or not - their systems dont tell them that. so again yesterday i was embarressed at the tills in macro. I tried to phone this morning and the phone just rings and then i get cut off. I left a complaint on their facebook page . They told me to go to a branch and get a new card. Really?? Terrible service, i want my money back as i have over r4500 worth of points that i need to use, but had to pay for it at the tills The 3rd time now. What is the point of collecting points for my purchases only to have to pay for it on my credit card anyway.. This smells like standard bank making sure points are not used so they can get customers to spend more credit. Macro tells me this happens all the time with ucounts cards.