Disappointed client

I have been to the telkom branch in the chatsworth centre on the 14 February to open a new laptop contract. They first told me i just need my id to open a contract cos I've got a contract wit telkom. Wen i get to the store they tell me i now need bank statement and salary advise so i go the next day with all the requirements and do my application everything was successful but now they dont have stock so they told me cum back on Monday which was the 17th February. Wen i get to store on mday they tell me sorry they still dont have stock and they will call me and let me knw. My neighbour and a friend went to the same store and they both got the same contract! 25 Feb I went to the store again n they still had no stock but I was told that the stock will be received by Thursday the 27th . I have not received a call till date. I then went to another telkom branch who claimed they received stock on Friday. I was under the assumption that if your order is placed on a backorder you have first preference when stock arrives. This is absolutely frustrating to be waiting for over 2 weeks now, I am thinking of cancelling the current contract that I have with them. They should have checked stock availability before processing the application. That would be the professional thing to do.