A website and the domain name are actually separate. When you sign up for a website with Reason8 the
site itself is hosted with us. This means that the website sits on our servers and we are responsible for making sure that it is live.
The domain name however sits on a computer elsewhere. By changing the Nameservers you are simply directing the name to your website. But the name itself is still managed by the company you originally purchased it from. You will therefore still need to renew the name with the company you originally purchased it from. They should contact you near the time it is due for renewal. However to be sure I would suggest you make a note of when the name is due to expire.
We hope this is helpful,
Reason8 Support