As some of you may know, a few months ago Diners Club Cards are now part of tth Mastercard network, with Mastercard numbers and acceptance. I tried again today to add my DC MC to may cards list and I get the following error..
There is an issue with some of the information
Please check the credit card number entered.

It will not accept the card number as valid. Has anyone else encountered this????

thx

DC uses idine for the its restaurant discount program and IMHO, that's why it won't register your DC card.

I would call Rewards Network to see whether they can add it at their end. If not, I'd call the credit card company and explain the situation to them.

Diners Club (since before the MC conversion and also since) has been automatically linked to the Restaurant Savings Program, which is administered by iDine/Rewards Network. (It's a 20% cashback, "free" with the card, tho the card is far from free.)

Because the card is automatically tied to that program and cannot be removed from it, it cannot be used for any other iDine program.

(This MAY also be the case with the credit cards officially associated with airline programs, such as Citibank's AAdvantage MC, which are typically automatically associated with that airline's iDine program, but in that case they have the ability to align it with a different AA FF account -- in case they assign it to the wrong one first -- so I'm not sure there.)

I've talked to Rewards Network ad nauseaum about this issue, and it will not be addressed. The Diners MC will not yield miles.

While it makes sense that the Diners MC can not yield miles in another program, what annoys me much more is that Diners MC cannot yield Club Rewards POINTS (which can of course be turned into miles) rather than just savings.

Many of us chose Diners Club because of the great earnings and flexibility of points, why do they think we only want cashback (rather than the option of even more points) when dining?

Not only is cashback not points, it means you earn even less points (because you don't earn points on the part of the restaurant spending you got the cash back for).

Anyone tried talking to Diners Club about this (with someone high up enough to be able to give anything but a pre-written answer)?