bad service and no response from Jet Customer care

Good Day, I wish to lay a complaint against Jet @ Hemmingways Mall in East London. once again experienced terrible service from staff at Jet. I went to Jet on Sunday, 13/09/2015. I tried to make a purchase using a Jet gift card and was told the gift card system was offline. after a call to head office by a confused manager and confrontation with an arrogant cashier, still no luck. this is not the first time I have tried to use the gift card and told the system is off line. what is the point of a gift card if it is unable to be used. the cashier insisted I should just pay cash for my goods. Why? when I have a gift card that I wished to use. this is extremely upsetting as our family love shopping at Jet, the quality is good and the prices are right. <br> we wish to continue shopping at Jet, but the service is just so terrible. the cashiers are slow and uninterested in their work, there is never more than two cashiers on duty - even at month end. I don't know if the bad attitude is worth the purchases we make at your store.<br> I have emailed Jet customer care and had no response.