"Citigroup's Marriott code CIT is one of the most widely circulated financial sector codes. FlyerTalk users report: "Citigroup code has been posted on public sites for 10+ years — it's one of the most-shared codes in the community." hotelcorporatecodes.com lists CIT with "⚠️ Sometimes" verification. NYC-area full-service Marriotts (near Citigroup HQ in Tribeca/Park Avenue) are more likely to verify. US domestic outside NYC: 5-15% check rate. Europe/Asia: meaningfully higher. Business card typically resolves verification requests."

"I work as a consultant and frequently ask for and use my client's rates (at their insistence, since I will be billing them back). I have been asked for ID maybe one time in 15 since February, when it was announced in this forum that rates would be ID'ed."

"I am very rarely asked to prove my eligibility for a rate...but they have every right to ask and if you can't produce it, you will be re-rated to the current rate, which is often even higher and there is no guarantee points rooms will be available. Doing online check in rarely helps this as most properties don't actually do online anyway - especially to people who are not returning guests to the property or elite. You are taking a gamble. One that is likely to be fine. But understand you are intentionally breaking the terms of the bonvoy program and if someone really cared, there can be consequences."