I've been thinking about buying the "Basic" for my thog.clan.su website so i will earn +800MB disk space. The question is after i've buyed the Basic for my website. Does the 800MB of disk space be permanently
It is permanent. So you will always have 800MB of disk space. Of course, if you use it and will not buy additional disk space, there is no way it is going to be increased. But there is also no way it reduces after the validity period of the service is over.
The second question is if i buy 24 Month Basic system for my website do i get the disk space x24 or just 800MB.
Two similar services can not be available at the same time. The package of services will be activated only after the validity period of disk space increasing service is over.