******* and worst service in the world

Bought a new ikhokha flyer and when it arrived we saw there is no option for tips or discount, also the machine keeps on freezing and restarting and finally I have R6000 in the app that needs to be paid out and it doesnt. I have been emailing them this whole week and there is literally no response from them. They sit with all my money, nothing gets done. I canceled the flyer within a week af receiving it but they just refuse to help me. Worst service ever and I will not use them in any of my shops now.