Contract Termination + Payment

Hi, first of all sorry for not writing this in German but I am not fluent.

 

Back in 13th November I Marked for Termination my DSL connection. I tried to check the option again and I got some sort of an error on that no products are available for termination, sort of confirming I had completed that part.

 

Today I went to pay my last month at an O2 as I will have my bank account closed by next Saturday and if a payment was requested no account would have been found on the 17th of this month, leading to more problems. This is because I will be leaving Germany permanently to go back to my home country after a year of work.

 

I tried to check my account today, mostly to look for information about how to send back the modem and I have some concerns and questions.

 

1. The payment has not been marked down under invoices and it seems I have not paid anything for this month.

2. The product selection to Mark for Termination again has appeared. I am assuming this is just to be able to cancel a concurrent termination and more the date further. I don't want to end up with money collection trouble especially since I will be moving away from German. Can anyone confirm this and please help me? I tried looking through the website but I could not make head or tale or it.

3. Can I give the modem to an O2 shop or there is another way to send back the modem?