Horrible Service of delivery of Goods with CCD Couriers company and Rain mobile network

Horrible Experience with Rain Internet Service Provider,after using the services for more than two year we decided to upgrade our Rain from Unlimited 4G To Unlimited 5G Which is on special for the next three months @ R479, My husband ordered the special on the 30th of June 2021 and today is the 8th of July 2021 and we have no received the order,The CCD Couriers company apparently called my husband on the 2nd of July on a number they said was provided by rain which my husband no longer uses and on the 06th July the CCD company finally emails my husband to advise that they attempted calling him with no success upon following up with the Courier company we discovered that the number they have is no longer valid and they are not at liberty to change the telephone number and we should speak to Rain as they provide the customer information to Them We contacted Rain and explained what the courier company which they denied and advised that the have the correct customers details...we are being taken as fools between a company and their services provides,to date we have not received our goods,The goods have been schedule for delivery on the 12th of July without informing the client...what will it take for our paid goods to be delivered without this much hassle and when we demand a refund we are told it will take 7 to 10 days...7\10 days for a refund while we have been already waiting for a delivery which will only be delivered on the 12th day...Is this how we conduct business..is this fair business practices