Yes, you can still continue to use it. After 10 days you will receive a payment reminder and after another 5 days a 2nd reminder with fees. If the subscription is not paid within 1 month after the due date, it will be blocked and forwarded to the collection agency. Thus, if you pay on February 01, you still have no fees and the subscription is still valid.
For further information please contact our Contact Center by calling the number + 41 848 44 66 88 (CHF 0.08/Min.) or from abroad +41 51 225 78 00. Have a nice day.
Kind regards, VlaznimA.