Regarding to termination of the contract

Hello. I’m Dong-Hyun Lee.

Now I’m using the tariff of ‘O2 my Home S Plus’

Since I suddenly have to go back to my country, I will leave Germany in the middle of February.

I tried to terminate the contract through website, but it said that latest terminate date is 09.10.2020.

What should I have to do, If I would like to terminate my contract from 1st. March?

My customer number is xxxx.

Thank you in advance.

DH

Customer number removed / o2_Dennis