Well Im not a pro in TOS of Fiverr but maybe it has something to do with those outside clients. If theres quite a few of them, all of a sudden signing up for a fiverr account and straight away all of them go to your gig. Also as others have mentioned, if they are local to you, same country, I mean they could think you are just fluffing up your rating and earnings artificially. Meaning you make friends, family members, pay random people small amounts just to buy your gig and then you pay them back but in return you got another 5* rating and popularity in the search. Im not saying you are doing that, but that is something that could definitely be a good reason why they are considering it suspicious if they are all from the same country because its not organic like for most where you get buyers from all over the world at random.
