Hello guys,

I'm going to go back to my country in March 2019, but my softbank's contract is till April 2019. How can I cancel it?
My contract start : April 11th 2017
My contract end: April 11 th 2019

Can I pay the payment advance for April in March , and tell them I would like to cancel it in March ?
Or can I let my friend authority to cancel for me ?
And one more thing and I had searching on the internet, can I cancel it orversea ?

Anyone know please help. Thanks for reading.