Pathetic service and customer interaction

On 18/1/15 i went to mall@reds Vodacom to order a phone, on 20/1/15 Carla called to say the cancellation and insurance claim has been processed and the phone will be ready on 24/1/15. ON 24/1/15 I went to the store and was told the phone was not there and Carla said she would let me know when it was ready, on 27/1/15 Carla sent an sms saying it was not ready and it should be there that Thursday, 31/1/15 i went back to the store and the phone was still not there &carla said i could continue to wait or cancel the order and go to a different store, i asked her to cancel which she claims to have done, she then said she emailed vodacom centurion mall and they have the phone, I then went to centurion mall and they said that they have the phone but they order still has not been cancelled by mall@reds, they tried calling reds mall while i was in store and they did not answer the phone, i was told to go instore and carla maintains that the request has been cancelled she does not understand why centurion mall is not processing. i have been sent from pillar to post just so I can get my daughters Sony M2 to date no luck, I will be cancelling my contract with Vodacom....