There are some disadvantages in ordering a license from a reseller.
1. The free development licenses WHMCS provide are only available to those who buy a license directly from them.
If your unsure what that is it's an identical second license that can be used locally for testing.
2. To resell WHMCS licenses, you are also required to have a license purchased directly from them.
A license from a reseller does not entitle you to resell licences at any point in the future.
It only costs $3/month more to go direct with WHMCS when compared with licensepal
Just something to keep in the back of your mind.