I experienced two issues with billing, one serious and one giving all appearances of fraud:
1) I was charged breakfast for 2 days even though I had breakfast at the hotel only one day, necessitating
me to request to have the extra charge removed ... unpleasant but got resolved ... I gave the front desk employee the benefit of the doubt
2) more seriously, at checkout, I paid part of my bill with cash, and the check out employee entered an incorrect amount for the cash I paid, folded the receipt and placed it in an envelope, may be assuming I wouldn't bother to open it and see the discrepancy, resulting in a AUD $100 overcharge. I had to return to the checkout desk and have this corrected and a AUD $100 credit be placed on my credit card ... while my taxi was waiting with the meter running. It appeared, true or not, that the check out employee would have directly benefited from the overcharge had I not noticed it ... very annoying and unexpected from a 5-star hotel in Australia.
Going to an InterContinental, I would expect accurate billing without extraneous charges necessitating complaining at the front desk, and definitely without bazaar-like errors in entering cash amounts.
Not sure how IHG/InterContinental can make this up to me, a Spire Elite customer. [Less]