Do i need to return my router???

Hello my beautiful people!

i can’t remember if I purchased my router or if I’ve been leasing it during my entire internet service. I believe I purchase it because I’ve been paying the monthly fee of 39,99. Nonetheless, is there a way to confirm this? I will be cancelling my account in 2 months due to a move. I’m trying to avoid any future problems.

my router’s serial number is:

xxx

Thank you for your help.

edit o2_Manga: persönliche Daten entfernt