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Thread: Citi Rewards+ (replaced Citi Preferred)
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Old Feb 6, 2019 | 10:02 am
  #34  
mia
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Originally Posted by geoff325
....all 3 said would require new number....
This is correct. The Costco card is a VISA, and all card numbers begin with 4. Rewards+ is a MasterCard, and all card numbers begin with 5. Changing the card number does not necessarily mean that Citi treats it as a new account, but there is no way to be certain beforehand.
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