Too many XP and achievements

Hi
I was attacking a bandit camp on my home island ( with troops as suggested in 'Ruler of the land' ) and my general was beaten ( as expected ) and then i recieved a lot of XP ( about 200 i think ) ( and advanced to level 28 ) and some wrong achievement's ( one of them was - win 100 battles without loss !!!!!! - I have not had 100 fights yet !). Next attack was successfull and and I got about 500 XP. I do not understand why ?

I doubt you got more XP than you should have. Probably a misunderstanding on your part.

The achievement system, though, has too many bugs to mention, but actually fewer than might have been expected!