HELP: Wrong Type of Oil For my Aircon

[finchy18]

Last I Year I didn't have a "Suki" shop for my aircon, so when the time comes that I had my maintenance for my aircon I just went to the shop that was recommend to me by my friend without knowing if they're really good....Now, a year after, I went to another shop which is naging "suki" ko na kasi they're good at their job(reputable as we say)...I had my aircon checked kasi may naririnig akong unusual na sound pero not so loud nka maka-irita...so when they did the check they found out (I was shocked and blamed myself)na mali pala ang nilagay na oil sa aircon ko for R12 na freon ang nilagay na 134A dapat... and isa daw yun sa mga dahilan kung bakit nag-ingay yun compressor ko and worst masisira....

Now I have another problem...hope you guys can help ... after having my a/c maintenance (cleaning change 134a freon and oil etc) in my suki (reputable shop), nawala na yung unusual na sound pro hindi na malamig yung aircon ko, parang fan nalng yung ginaw nya... (kasi nasunog yung automatic a/c controller so pinalitan nalng ng rotary type na a/c control..(they just converted yung nasira na electronic a/c controler)... mas malamig pa yung aircon ko before ko pina sa shop..... wala namng leak sa condenser and mga lines (double checked) at sakto naman yung freon dahil 134A na ang freon at oil na nilagay at umaandar na man yung a/c ko... bakit ganito? anong possible problem or explanation? At Ang sabi ng mekaniko dun palitan ng compressor dahil weak na daw, mahina na magpaginaw (ngayun di na talaga maginaw)...pero sa tingin ko ok pa yun dahil maginaw pa sya noon before ko pinasok sa shop....nagugulohan na ako ano ba dapat ang gawin ko at ano ba ang prob ng a/c ko?

malayo kasi mang mario d2 sa cebu.....