Ruwais private school offer for software programming teacher

Hi guys ,
My name is Po and I am from India currently looking for some job opportunity in Dubai. I got an email from ruwais private school stating that I have been selected for the teaching role .I got interviewed at ruwais over telephone . Now they are asking me to contact insurertravels.com to process my visa .
I contacted the agency and they are asking me for 1950USD for one time visa processing fee (which will be refunded after 3 days) under construction expatriate health policy under UAE labour law .  Now my question is is it even legit ?? Doesn't company sponsor visa in UAE ?? Please guide me so that I can take decision .

there is no such fees !!!
and the sponsor pays all fees as they are included in the terms and conditions of the labour law