We don’t force you to stay using a nasty contract. We work very hard to make you want to stay. Where can we go the extra mile to make you want to stay. Just ask one of us.
If you’re still sure that you have to leave, all you need to do is disable the Auto Pay and remove the US Mobile SIM card from your phone. Your service will end automatically at the expiration of the billing cycle and will stay that way unless you decide to renew it.