Currently GFam+ has an automated billing system that will attempt to bill again 48 hrs after the original charge didn't go through.
If you have received an email saying "GFam+ is having trouble processing payment" and you successfully updated your payment information after receiving this email you should see the charge go through within 24 - 48 hrs.
If you have received an email saying your GFam+ account has been canceled you will need to reactivate your membership.