An unhappy stay, Duplex suite, Infinity Residence, Samui, Thailand

Got changed to this duplex suite that I am not happy with.  The previous suite I stayed has a problem of rats running on the ceiling ventilation system.  When I complained this to the manager, I got told that would be a cat.  I simply told him my family used to have rats in the house and also cats.  I could simply tell a cat from a rat.  Then I decided not to argue with him.  Besides, he claimed "no guests complained about a rat problem.  That means I was to speak something extraordinary.  Another unhappy thing is that when they said they upgraded me to an Elegance suite, which turned out to be 2 rooms next to the previous room I stayed.  What's the difference is that the whole unit got split into a 2 bed room suite on the same size, meaning the bed room and living room smaller.  

Since they didn't show any sincerity in getting some compensation, I didn't feel like asking for anything further but reluctantly accept this suite.  Funny enough the front office emphasized the 2 bed room of this suite, but how can I make good use of this 2 bed rooms.  In fact it's a kind of waste and the bed room is much smaller than the previous one I stayed.  Most of all, the pool is much smaller.  I commented on this part to the manager, I got the answer "many guests do enjoy their stay".  So I seemed to have agreed with him on why I have a further complaint.  Anyway, from the first day of the power failure, they offered a one way trip to Fishermen Village (costing THB700) as a compensation, I really find it not so sincere.  Why not for a round trip.  

After all, all the local Thai staff are very friendly and helpful, except the house manager.