Phone Delivery

I Took out a contract on Sunday morning for a new account at the shop. Everything went well and they didn't have stock for the phone I was looking and we asked how long will I have to wait for the phone to get there. They said it would take 1 to 3 working days. It is day for already and when I phoned there was a bit of a confusion with the staff and one staff member said they don't know when they will be receiving any stock and the other said there is a back log. I didn't have a problem with being without a phone for 3 days but now im going on the long road without a phone. what will i do if something goes wrong. Its not the first time I had trouble with vodacom and I feel that they don't look after their clients.