Originally Posted by
dcpatti
Keep your complaint brief and stick to the facts. Explain the relationship between all the parties involved and how it came to be that everyone started buying and redeeming miles. There is no rule against sharing a good deal with someone but unfortunately the burden of proof is now upon you and your friends to prove that you are legit.
I think this is the key. Did you set up a bunch of accounts in quick succession? Chances are, the fact that three related parties (you, your father, and your brother) all bought miles in quick succession triggered the alarm.