Review Ac cooling!

Purchased a 2 ton smartech platinum from a dealer as highly recommended by some customers! Unfortunately it was not the case and the ac was useless. HAH technicians came to my house 8 times with different excuses/justifications for the ac is not cooling!!
Finally and with number of meetings I had with their management in their office, they told me to go for 2 1/2 ton assuring me that the problem of cooling will be solved,of which I did. However, they asked me to pay the difference of BD 90/ plus!! When the ac was delivered I had noticed they brought the Golden one!!?? I was told that this is better than the platinum!! Since then the problem has become worst and have suffered a lot with them again!! I went into the same senarios with them and with their technicians untill they changed the compressor for me after the ac had turned to a heater!!!?? Yet and after fixing new compressor as stated, they asked me again to pay BD 57/750!!!?? I did after lot of arguments with them and their isistment to pay!!
Belive or not and after all these hassles had gone throw, the problem of cooling is upsolately worst than ever. I did not sleep in the room for 4 months now!!
Evedences and supports can be submitted if I was asked to present by any source.