thanks guys. maybe i didn't pay that much after all..

btw he didn't fit me with a Denso cooling coil, he installed a Paco one (rm370, and expansion valve rm85). When he showed me my old cooling coil he showed a lot of dirt and some stains which he said was a sure sign of leaking.

anyway it's been a full day, aircond still very cold. hopefully this time it lasts.