>they have a multilanguages name tags,             
    Can you please specify where those names are? on the internet or on the ground?             
                 
"removing other languages name tag" is perfectly OK if that language isn't actually present - translations don't belong in OSM. You added a forign language that is not verifiable or present on the ground.               
If this building does have a Persian name in Persian script to go alongside the Arabic name, or written under it, or it exist in a plate or a sign at the location, then you can add it in name:fa tag. If there really is no Persian name, then it shouldn't have one in OSM.                   
if there is any Persian name of the place at the location s sign, plate, banner, or even in a brochure giving at that location or a Persian name written in an official website of the place or any other official government website please share it and we can use that exact name.         
Regards.          