If you registered the domain through us and the domain is under our account on Namecheap, it is our responsibility. When the domain is nearing the end of its registration period, we will notify you so you can decide whether or not to renew the registration.
If Unlimited Hosting is not listed as the contact, we will not be able to notify you in time about the domain renewal. In that case, the person listed as the contact should take care of it.
Unlimited Hosting
WHMCS