Cancelled upgrade Bad after service

I did an upgrade on the 22nd January my phones were promised a week later which would have been round the 24th. I only received my phones on the 1st Feb which meant I would have been billed for the old contract and the new contract. I was not happy with that so I cancelled the upgrade on the 3rd Feb which was within the 7 days period to give back. I am still sitting with the phones no one has collected the phones and a week later they have deactivated my existing sim cards and activated the new sim cards. how the hell can they do that when I cancelled on the 3rd and it takes them a week later to activate sim cards that I am not using inside my old phone. I spoke to Anneline at mobile talk and she was not very helpful. all I want is for them to rectify my old sims and re activate it immediately. I cannot make calls I cannot receive calls. I want this done immediately