Hi Colleen,

No, did not receive notice of number change last year and have had card for 20+? yrs.

I do check online daily and the only times I've had disputes, they were resolved in a matter of days. Interestingly, both occurred on Mariner 05 cruise, nothing to do with RSSC, but Hotel in Vancouver and we had hotel bill printout, and limo service in ATL charged to some bogus jewelry co. in NY. The limo co. had had problems with their card processor evidently, but as I said, Discover resolved all immediately - no problem. Thanks for the heads-up!