Originally Posted by Flying for Fun

I believe they are just slowly sending out the new format cards. My partner received one also long before the expiry date. Once you activate the new card the old one is deactivated so you will no longer be able to use it. You will see a two digit numeral on the lower left above your name. That is the card number and will be one higher than the old card number and it is coded into the chip and magnetic strip so once activated any prior card cannot be used.

James