Appaling

I cancelled a fiber account one month ago. The fibre is at Club Street in Linksfield, JHB. This is for a family member .An invoice was sent with the cancellation request. The fiber in Fairmount in Fairmount, where I live, was disconnected by mistake. I phoned a number of times - holding on for at least 20 minutes each time. I was told that Fairmount was re activated. I got home and the internet was not working. I called tech support. ( 18:15). I was 25 in the queue. I don't have that much airtime. Please advise how I can change my internet service ( actually, lack of service) provider. Thanks