How seasons work here
Phuket is a highly seasonal holiday destination. Traders here only have a very short high season, to earn most of the income for the entire year. Therefore it is a must to make savings for the rainy days
Income for a Patong guesthouse compared with rainy days in Phuket spread on twelve months. Source (accounts for Niku Guesthouse and Phuket Weather Forecast)
So please understand that it is not possible to offer discount around Xmas and a few weeks forward, the only time rooms are in real demand.
It can be recommended for people who can't afford to pay the modest room rates here, to plan their holiday outside this short period, when demand of rooms is less.
Particularly in the long slow low season it is possible to obtain really good discounts on room rates. Reducing the requirements for facilities in the room is another option for saving money