Terrible service

Never take out a cellphone contract at vodacom Rosebank mall….. that 7 day return policy is only an eye blind to make customers think they are getting good service…. I return a brand new i phone within my 7 days because the battery was just not lasting and still they can give me a new one because the device needs to be sent away for assessment purposes…. They left me without a phone and when i contact them they cant give me a straight forward answer. And now they claim there is a backlog…. Which can take 7-14 days …