"HotelCorporateCodes.com rates the Wells Fargo Hilton code as "Sometimes" for ID verification. Hilton verification is inconsistent — approximately 20% of stays trigger ID checks for corporate codes. Wells Fargo's massive presence in San Francisco means properties there are familiar with the code and its legitimate users. No specific reports of being denied or charged full rate. Business card or work email typically resolves verification requests."

"I have been asked for Employment ID for the first time in London this year too, and multiple times so. Not had that in years."

"I run a Consultancy and work with clients across both Public and Private sectors. Many years ago (15?) a UK Government client (they are still an active client) shared a Hilton Corporate Code, which was to be used for stays required when working with them. This code gives access to (but not 'On Duty' rates). I use this code regularly across the UK (mainly London) without issue, staying most months at various London Hiltons."