Using Multiple Reseller Accounts from Different Hosting Companies

[Swib30]

I have two reseller accounts each with different hosting companies.Is it possible to install WHMCS on one of my reseller accounts (Hosting Company A, for example) but still use my hosting reseller accounts from both companies.

For example, if I offered Standard and Premium hosting packages on my website, would I be able to host the Premium packages with my Hosting Company A reseller account and then host the Standard packages with my Hosting Company B reseller account? If so, are there any domain issues or do I have to use the same domain for each reseller account? I hope this makes sense.

[webresellers]

yes... this is one of the core features of WHMCS

[Swib30]

That's good. But regarding the domain issues, could I use the same domain for both hosting companies and just change the nameservers as follows:

Standard Package (using Reseller Hosting with Company A):
ns1.mydomain.com
ns2.mydomain.com
Premium Package (using Reseller Hosting with Company B):
ns3.mydomain.com
ns4.mydomain.com

Would this then allow my clients to just use the corresponding nameservers depending on whether they ordered a Standard or a Premium hosting package? Or would I have to have a separate domain for each company and set it up like this:

Standard Package (using Reseller Hosting with Company A):
ns1.mydomain.com
ns2.mydomain.com
Premium Package (using Reseller Hosting with Company B):
ns1.mydomain.net
ns2.mydomain.net

Please advise.

[webresellers]

yes, you can define seperate name servers and assign them to seperate servers.
I would get the demo of WHMCS and play with it, or even look at the online demo. Once you see the server setup, if should be crystal clear.