You can port over or cancel without first paying. You will still pay the tab of course but it's put in a final bill for all service broken down daily. So port/cancel, then pay the final bill, an you're done. Of course you'll want you phone to b unlocked I f it isn't already to use elsewhere.
No of course not, I wasn't sure how your contracts worked considering they aren't technically "contracts" they are Tabs. And I'd rather pay off my tab anyway. I thought I was only going to be paying 56.00 a month (estimated) but then the tab is added on and I pay 73.00 a month which is quite a lot for me.