Whether Lancester Land mark Hotel Company Ltd,222 Maryleborne Road,London NW 6JQ,United Kingdom really exists?

Question

tel no.+44-702-406-7785,[e-mail]

Answer 1

The hotel exists, but the phone number you have given is for a mobile phone. A major hotel, such as the Landmark, would never give a mobile phone number as first point of contact.
I also suspect that the email address you have is a yahoo account.
This has scam written all over it. Don't reply or send them any money.