Originally Posted by
nall
I guess I can't easily churn. IIRC, your TY points go away if you cancel right, even if you have another TY card?
You can PC to another card that earns TYP, or you can redeem the points within 60 days after closing the account.
This thread might be helpful:
Citi ThankYou points - cancel, downgrade & expiration considerations - FlyerTalk Forums