

visa extention issue for my wife
My wife entered china on march 19th,2014 with a S2 and duration of each stay of 180 days after entry. So now i am planning to extend her S2. I already have the marriage certificate authenticated by Chinese embassy in my country.
So , my question is -
As per some internet sites , i saw that suppose if my wife gets an extension of suppose 90 days, and after obtaining it she stays for around 10 days and goes back to our country for short trip suppose 10 days, and again returns. Is it true that upon arrival in china the remaining 70 days is all finished or is it just i am being misguided? Or is that she still can stay for the remaining 70 days and re-apply for the extension after the given original period is over!
If this is the case, I think it would be better to go back to my country and again reapply for S2 and come back with the new visa with 180 days !
thank you !!