Noone seems to be able to assist

I went to apply for a new cellphone contract over the weekend which I was told they would get back to me within 3 working days. 3 working days passed, and still no feedback from the Northgate store and it so happens they never pick up the phone. Now I called the call centre spoke to some guy yesterday who told me they were just waiting for some final approval on the application. Then I called again today to check if there has been any updates only to be told that the application does not even appear on the system. This is so frustrating when one just has to get a yes or no answer. Noone seems to have any answers to my enquiry and noone seems to be willing to go the extra mile to check the status.