drugfree

Just had PCV, water pump, Thermostat, cross pipe, engine air filter, carbon clean, oil change and coolant done.
after mechanic and I took for a test drive the temp red lined all the way when driving he turned the heater on full blast it went down CEL came on a code P275300 that was never there before transmission fluid cooler control circuit/ open.
So he checked coolant level took the car for another drive said he thought an air bubble popped and everything was fine said he put a scanner back on said no codes.
I drove the car about 40 miles to stepdads just got out the hospital was there for 2 1/2 hours went to leave CEL on.
Had it scanned again code P275300 transmission fluid cooler control circuit/ open also P052E00PCV regulator valve performance and P162400 requirement malfunction lamp on active. paid a lot of money on this service and mechanic isn't answering me tempted to lose my temper. If anybody can help, I'd appreciate it. trans valve new pigtail new PCV new Water pump new ect. everything is new why the codes? Did he not plug something in or plug something in all the way?