If you want to get an overview of your purchases made on findroommate and your membership status, you can go to 'My purchases' in settings.
Here you will find a list of all previous purchases (including date, price, terms and invoice)
Furthermore, you can see if your Premium is active or not and if active, when it is set for renewal.
Finally you can also see which credit card is used for the Premium membership and you can from the site remove your card information.
Go to 'My purchases' here: My purchases