Poor service from Zoom and it's ISP provider

Last week I requested installation from Zoom. The company Accelerit came on Saturday and installed my line, but did not check if it was working. This Monday I received an invoice for R149 which I paid and after 2 days of waiting for activation I queried with Zoom and was told, I was not to be changed for this. At the same time I questioned installation with both Zoom and Accelerit and was informed to wait for a technician to check the line for a fault. Guess what two days later and no fault was reported and no technician was dispatched. Looks like I will have to fight to get my money back for a "fly by night company". Angry at the poor service and miss information from these companies.