Since I didn't get an answer through your message center, I will give this thread a try.

"Earlier this month, there was an error renewing your electron card, which may have caused you to experience unexplained failures when trying to use your card at a merchant or withdraw funds from an ATM. The problem has now been rectified. We apologize for any inconvenience"

Does that mean I can use my old card that expires 05/2006 after 05/2006?

No
A new card should have been ordered for you since your current card expires 05/06.
Please contact me with your account name and I will check into it.

oke test the old card it works again, now tomorrow me gonna test the new card because tomorrow that one should work again.