Exactly this. If you want to kill a competitors iOS app it's a well-known blackhat route, and testified to here before:

https://news.ycombinator.com/item?id=343060

In this case a competitor used fake accounts and stolen credit cards to buy a competing app to get it delisted - Apple's apparent policy once the chargeback total hits some arbitrary figure.

Edit: Immediately downvoted for no reason. Catching these sort of malfeasant actors was literally one of the USPs of former Irish yCombinator Winter 2014 participant Trustev, which was picked up by TransUnion for €44 million a year later : https://www.siliconrepublic.com/business/transunion-buys-tru...