I've had 2 extra 500 milers pulled due to a misconnection. I called the MP desk when I got home and was told that it should be corrected automatically within 72 hours. Of course that didn't happen and I called again. The agent said she will log in the case and the 500 milers should be returned within 1-2 weeks! They turned up in a week.

So call the MP desk asap and explain your situation. Maybe you'll get someone who is helpful and get them returned right away.