I'd say it would work but you would need to plan ahead, I wouldn't say it's illegal either, it's Hard incentive if anything.
Just be ready to keep switching accounts as noted above, LTV will probably be your only problem so you need to monitor on account 1, how many sales you make before they ban you.
If you make 100 sales then get banned,
Account 2 you would make 95 (ish) sales and then start a fresh account.
They could write to you and ask for proof of traffic though, as to which you would have to answer cleverly, I would design a website and give out business cards, try get the traffic to go through your website so it looks better.
Good luck if you proceed with your idea.