Hi! Can you help me with A21 or A22 to Eatin Hotel from Hong Kong International Airport?

Do you refer to Eaton Hotel? If yes, both shuttle bus no. A21 or A22 are ok.
If take bus no.A21, get off at Nathan Hotel, Nathan Road. It takes around an hour. And the ticket fare is 33 HKD per person. Then walk northeast around 120 yards.
If take bus no. A22, get to Chi Wo Street, Jordan Road. The duration is about 40 mins. It costs 39 HKD per person. Then walk northwest around 300 yards.