Bad Customer Service

I am highly so disappointed with the customer service at Cell C Waterfront Cape Town. I was assisted by a guy called Shaun, At first he seemed very friendly and willing to help. He even mentioned if I take the phone on the day it comes with ''free'' items like a watch, earphones, etc. So we asked for the document that was sent etc. I had follow-up on and he told me new contracts ''usually 24 to 48 hours, he sent the documents today but he believes the department has a backlog'' okay I do understand a couple of days later i asked again. ''his manager is not in today's public holiday and no response from the credit vetting department as yet'' Next day I am sure manager is at work wasn't he suppose to call me to give feedback? Why do i have to ask him again? I told him to cancel my application will look else where. All he said ''I fully understand. No apology or try to fix the situation. WOW they know how to treat customers.