I didn't stay but tried to book for a week's stay....

I didn't stay but tried to book for a week's stay. I'd almost booked the Business Class on the RHG App but decided to call the hotel to check if an early check-in was possible. I was surprised to be informed that neither are the Business Class rooms available nor are the extra services such as Happy hours in the Lounge. But the info on the company's app is contrary, there was infact a discount on the Member's only rate for Business Class room as well. Unfortunately the guy on the phone couldn't help me much as I'd called at around 5 am but he was definitely sure that the said room type is not available physically.