The first thing that you need to know is Fubotv/connect free trial is only available to new customers:

Fubo TV gives you a free trial period being a new customer.

To enjoy your free trial, you must sign up with debit/credit account details.

The first payment will be due by the end of the trial period.

Remember that the renewal date will be identical, so to avoid the first payment, cancel the trial before time, and also learn How To Cancel My Fubo TV Account?

It is better that you end the trial within 7 days before the expiration to avoid the Fubo TV cost per month.

Users who restart their accounts after the trial will be charged when they restart; also check How Much Does The Fubo TV Cost?