To accumulate flight points, all you have to do is link your credit card to the Matmid Frequent Flyer Club.
This can be done in the following way:
Call Cal Customer Service at Tel 03-5726444, provide your Matmid Frequent Flyer Club membership number and link your Diners cards to the Diners Matmid Club or to the High Miles Club.
Points amassed in the Diners Gifts Club before joining the Diners Matmid Club cannot be converted to the Matmid Frequent Flyer Club. After signing up, points earned in the Diners Club will no longer accumulate in the Diners Gifts Club and flight points will accumulate automatically on your card. From the moment you join the program, the flight points that you accumulate will be listed on your card under the Cal listing.
Information about the number of points accumulated in your Cal credit card will conveniently appear on your monthly Cal card itemization.