Unfortunately, the people who do this stuff, prey on people in vulnerable situations who need to get their hands on cash quickly.

There is a good chance that it is a scam and that you will never see your money and an equal chance that it is an undercover operation by HH or DL to catch people selling their points/miles. The consequence if the latter is that your accounts would be zeroed out and closed.

Don't get yourself in the middle of these frauds. The last thing you need right now is more stress.