if just the credit card is required, credit companies send out new ones to replace lost/damaged ones... the card number remains the same just the valid/expiry dates change
not true for debit cards though
That's not true for AMEX cards either
I had an AMEX card replaced due to the stripe not reading very well and the new card had a new card number
The 12th digit of the AMEX card number is a card sequence number which is incrememented whenever a card is replaced for being lost/damaged/stolen , so that number changes and so the final digit will change since it is a checksum digit