Wat one sud do if he/she provides personl info to d same natwest bank,,,dat z supposed to be fake?

i had recvd the same typ of msg a week befor of winnig some amunt,,n i hv provide the info ...wat shud i do nw...plz help me out...its the same NATWEST BANK PLC UK..DR. HARRY EDWARD -the director general of bank..can any one tell me z it fake or wat...????