Cell phone contract

I app**** for a cell phone contract at Telkom 2 weeks ago, they had no stock and had to order the Samsung A3 which I understood. I went up and down to check if the phones came already because they only send applications away when they have stock to see if you qualify which I didn't understand because that's working back to front. Anyhow I went there today and they still did not have any stock so I change it to two Samsang A5 which they had for my application to be sent and I was called later in the day saying I was approved and that I can come collect the phones, I then received a call a few minutes later where they stated that they cannot log the phones on the system due to system error and found out that this was a problem they've been sitting with for quite some time. What type of **** service is this, first they would not even go out of their way to get the phones we wanted in the first place, when we make it easier for them and change the phones another problem pops us. This is unacceptableits the quickest way to loose customers. Your service sucks big time.