We will send out your renewal email prior to expiry of your services. Your service will not auto-renew upon its due date.
You will not lose time by renewing early, and so you may also select the renew now option to renew via a different payment method.
If you later choose to renew your account after it has expired, then the renewal will start from the date that renewal was actually due, not the date of renewal.
It is advised to renew your services prior to the day that your service expires, otherwise if for some reason you do not renew on that day then your service will be deleted the next day!