Chan Oil International Company — fake offer

The same mrs. Samaria sheikh call her private number +8049, still not give the original phone number and mail id, she send my c. V short listed for singapore company and tomorrow have telephone interview, the same i have call next day call from singapore and company name, next day they send offer employment letter and says the expense will detect from salary at singapore, the same mrs. Sheik call me send 10000 rs as registration fees, after send the registration fees the same day they apply for visa, but i ask regarding medical she said no need, i am waiting his reply for tomorrow 16.10.18