"This Deloitte code circulates widely among current and former staff. IHG auditing materials note that large firms like Deloitte and IBM have codes hard-coded into IHG's auditing software to trigger a request for ID. The "Stop at Desk" flag has been observed: certain high-value codes block issuance of a Digital Key until physical ID is presented at the front desk."

"Overall, I have been asked for proof of corporate id or business card especially when using negotiated rates at individual properties. Now at most of these places our company has deeply discounted rates that can be 50% off the BRG and may have last room guarantee too. For example, I have been asked at the Hilton KL, IC Strings Tokyo, IC Jakarta, IC Frankfurt, IC GS Hong Kong, CP Zurich to name just a few. From friends experiences the GH Singapore is also known to ask for proof if some of the quite low negotiated rates are used. Now usually, I was asked once and then it was done and only twice at the Hilton KL, but not all the time on every stay."

"Once you are past cancelation deadline either advance rate or flex, and obviously your CC is provided when originally booking, if your hotel asks for corporate ID of your corporate rate and you can not comply, the hotel will simply charge you the correct higher rate."