Calm down people. The person in question was not logged in for the 1 booking he is complaining about. He did not qualify for the points for that booking.
If you were logged in (and thus your IB number auto filled when you were booking) then you are fine. Some people who made new accounts might not have their IB number attached to their bookings after the fact but if you were logged in and included your number when you bought the tickets you should be fine. No reason to talk charge backs yet when it hasn't even been 10 business days.