6 months, no delivery

This is a big ****. They called my dad, who is 63 and a dialysis patient and retired. They convinced him to do an upgrade with them and up to now, they havent bothered to deliver his phone. His sickly and retired and he seriously cannot be worried about things like this and continuously chasing up on it. His been paying over R800 a month for a phone, he doesn't have. I tried calling numerous times today on ********** , nobody answers. So in other words, i have no way to get hold of them. Spoke to John on the 2 Feb 2018, he promised, the phone will be delivered, nothing. Worse experience ever.