Sony M4 Aqua Micro USB Plug Insertion Issue - Potential Socket Replacement or Repair?

I'm having trouble with Sony M4 Aqua.

Well, I became a user of a used phone as above.
Everything works great and the phone is very nice, except for one detail:
Well, the micro USB plug does not go all the way (I checked 3 different ones, there is always about 1.5 mm missing so that the plug slides in completely like in other cameras that I have at home. It is as if the micro USB socket in this model was shallower than in other models phones, or something stuck in a socket.
A request to users of this camera model: does "this type have it" or does the socket on my camera need replacement / repair?
If repair is required, what is the estimated cost if I would like to repair the phone in Warsaw?

Thank you.

greetings

Read this post http://forum.android.com.pl/topic/232984-sony-xperia-m4-aqua/?page=5#comment-4009182.
In case you would like to replace the socket on the phone, it is connected with a tape with a plug. And you have to ask local services for the exchange price.

Try a pin, DIY, maybe something is sitting ..
It falls by itself if it just stays unstable /

It doesn't fall out alone or sits unstable.

I read in the instructions for this phone - this type has it.
Subject to close.