How many single wallets i can verify by myself? I think, i have to pay always 8$, but get only once signup bonus. Is it right?
One identity = one hash = one single reward.
Its not about the reward, if i have two divices and i don't want a multi sig wallet, it its possible to verify both without reward? Can i verify as many single wallets as i want, of course without reward?
Yes.
EDIT: And I think, it would fair not to charge additional $8 for verification of additional addresses.