Hi Koreller, thanks for the reply, I do respect the knowledge of apm-wa and I am fully aware of what he did in Turkmenistan and OSM. Hats off for that. And to be clear, I am not arguing, I am just debating the way of tagging in order to make it precise and functional. I agree with apm-wa fully about Ashgabat not being the province, however, there are lot of similar examples around the OSM world where these "equivalent" things are taken into consideration and mapped with same administrative level because function on the ground is the same. 

This is why I have sugested adding one more tag, place=city and place=province to make clear what is the type of the place but per my opinion and as I understood your comment Ashgabat has same administrative power as provinces, therefore I suggest keeping admin_level tag unchanged.

Sorry if my comments were understood as arguing or disrispecfull towards Mr Allan Mustard. I admire his enthusiasm and what he did for Turkmenistan OSM