Hi Menky
Without wishing to worry you too much, have you considered that it might not be your money that they want?
By completing and submitting the application you have given them details of your name, address, phone number, date of birth, country of birth and passport number among other things, all very valuable information to identity fraudsters.
It might be worth your time to contact the national authority that issued your passport and explain that you have completed an application form which included passport details and you are concerned that it might be a fraud and they should be able to advise you further.