New conditions for retaining matched status with AB:
If you are a member of another Frequent Flyer Program, you can match your status and receive the topbonus status card for 12 months for free.
Within 6 months, you are required to collect either 10.000 status miles or 10 flight segments, in order to maintain your Silver Card until the 12th month.
Within 6 months, you are required to collect either 20.000 status miles or 25 flight segments, in order to maintain your Gold Card until the 12th month.