hyena64: ... doesn't even have great clubs for his 30 level. ...
You dont need to have great clubs for being amateur around lvl 30. You dont know if he saves up on credits to have the necessary amount available for buying higher level/tier equipment.
You dont know if he spends credits on RGs or premium tourneys or somehting entirely different.
You cant judge on inventory of bags or anything else. Apparently he have fullfilled some requirement for becoming a Nation member. Otherwise he probably wouldnt have made it there.
There is always the suspicion of nepotism. But that is just speculations and cannot be verified. So any accusations of that, which I personally think you are getting close to, is based on nothing but anyones own opinion.
There are lots of ways you can be a "top customer". Apart from Buggyyys statement which is a list of 3 possible ways, you can also contribute greatly by constructive criticism on forum, helping out other people on forum, viewing or even buying from the offers in the Credits section ... take your pick.
If you really want to know why he is a nation member, and youre not, then raise the question with WGT. Not with anyone else. We all have our own opinions on various topics. So to make this "unfair Im not a member"-reply is somewhat unnecessary.
Btw ... the "unfair Im not a member" statement is what I deducted from your post. It is my opinion. Might be wrong - but that is the general sentiment I get from your post. :)