@Kate14If you have a Refresh Contract, you can see this at the bottom of the Myo2 once you have logged in., as you will just need to pay off the device plan, and the contract will be terminated.
If you don't have a refresh contract Customer Services will be able to give you the termination amount.
This is not customer services and we dont have access to your account
I do not work for o2 or any VMo2 /Telefonica/Liberty Global Company