Would have to agree with lichwee. I would guess re-seller.
Kelvintch77 if you love your dog and wish a happy life upon him, pls consider neutering him. It's the only way to ensure he goes to a genuine animal lover and not a backyard breeder/re-seller.
If cost is an issue, ask for it back as adoption fee or donation to animal rescue charity.
It will give you peace of mind to ensure he continues to have the happy life he has had with you.