What exactly are the steps I need to take to switch my Telus iPhone 4 (still on contract, 3 months left) to Koodo? I have read somewhere to take it directly to a Koodo booth, get the SIM card, and I keep my number and they contact Telus to cancel my contract. I've also seen references to having to give your original contract company 30 days notice? I don't want to do something the 'wrong' way and end up being a huge hassle. Thanks.