cant cancel dropbox subscription.

[kirbya7]

I cant cancel a charge to my account for a while now. I get charged for an ex girlfriends account so i cannot log into her email and cancel my card being charged. 
I have attemmpted to submit a ticket for assistance however i get the email confirmation and ticket number to my personal email address, i have received no response for a week now (submitted 11th jan) and I click the link and it says i have no tickets open? 

The email i received is:

I am a bit lost here... and there isnt a line to call from what i can see. Can anyone offer advice?

[Sanchez]

Hey, @kirbya7, welcome to our community. 

I’ve located the ticket you submitted, and unfortunately, it was closed by our system. 

No worries, I went ahead and asked a support agent to email you at the same address that you submitted your ticket from. Have a look for that, and reply to them, so they can check into this for you, and help out. 

By the way, nice work on the redaction of personal info in your screenshot 👍

Cheers!