application expired

On Friday I did an application for a Vodacom contract. I was told everything was in order and delivery would happen this week. Yesterday I received a call to say there was an error when trying to process the application. I was given a number to call,which I did but then later got cut off . Today I called to follow up only to be told the application was cancelled because they couldn't get hold of me. The last missed call from Vodacom was just before I spoke to the gentleman who told me about the error. Soooooooo now I would like to know who's problem it is that Vodacom had an error on their side? I would really like to know when I'll be getting my phones for the same price from Vodacom because I was told the promotion is no longer running. Please sort this out , as staff are even lying.