One could also argue this is another Chiu Brothers style churn. 1) OP knew of an internals controls flaw and exploited it 2) OP knew money would be refunded, thereby negating the transaction 3) OP knew insurance company would still be paying CC interchange transaction fees 4) OP repeatedly cost insurance company said transaction fees as the transactions were essentially "voided out", for the purpose of financial gain he was not entitled to.

Just sayin.