Well, I can answer this from personal experience:

Wealthy Affiliate will attempt to collect funds the day payment is due; if unable to collect funds in that day, they attempt a 2nd time 6-7 days from the initial due day. If unable to retrieve funds the 2nd time, they will make a 3rd and final attempt 5-6 days after the 2nd attempt.

During that time, you will still have access to your site and the Wealthy Affiliate platform.

I hope that everything works out for you, Ahmad.

Wealthy Affiliate deducts the monthly subscription on the day it is due. If you cannot afford to pay then you must cancel your account to prevent the payment going through. If you cancel your WA account you'll have 30 days to backup your website before it's removed from the servers. Cancel Wealthy Affiliate Membership and Stop Billing

I have never heard of a grace period for membership. When you became a premium that is when you pay for your membership.

It is expected the day that you agree to. You may want to check to see if there is a grace period but I have never heard of one.
Jerry

Yes we have a s premium member I believe 25 website domains at your disposal. My friend upload away

Yes! I'm about to do the same later this week

Thank you for your response, very helpful.

It is your site you can load whatever you want to on your site here with a few exceptions. Like, no adult sites, hate sites etc. Other then that it is your site and you pay Wealthy Affiliates to host it for you. (Some of the best hosting for the money around)