I recall reading a thread where this was answered but now I can't find it. TOC says "Bonus ThankYou points are not available if you have had a Citi ThankYou Premier card opened or closed in the past 18 months."
I opened my TYP just over 18 months ago and have not closed it. If I were to apply could I get a second one while still holding the first or would I first need to cancel the one I have now? And does downgrading to eg DC count as closing?