Mavis Discount Tire review: Routine preventive maintenance. High revving issue new clutch

Car went in for clutch replacement. Took about 6 hrs the same day. Cost $701 including new clutch provided by mavis. About a day later car started to rev around 2000 rpms at idle. Would not happen all the time mostly when cold. Brang car back a couple days later to have an oil change, plugs, wires, fuel filter, and distributor changed. Service tech suggests a fuel treatment. I agree. And have idle issues looked at. $640 and I supplied the oem parts. I had asked if I should get parts and was told if I would like to I could get parts. So I did so through ford. Picked up car and idle issue still not fixed. Call shop and tell them my issue. I am informed the lead tech will not be available for at least a week. But I can drop it off monday and they will check it out. I show up monday and find out my car can not be serviced cause there is only one mechanic that day. No call to let me know just rude service guy who don't have time. I took the day off to have this service done. Call manager. He tells me to bring car to farther away location cause no main tech at weymouth shop. Car is revving at 2000 rpms and he wants me to drive that way 20 mins plus away. I wait till wednesday drop car off at 900 am. Figure will it's there i'll have the front struts replaced. No issue. But with the idle seems to be a sensor. They can get part later that day. Ok. Call me when ready. Don't hear from them till I call at 4 pm to check. Part didn't show up. Once again no call to let me know. Following day I call around 2 to check on car. Am told the part just showed up. Need 45 mins to put part in and test drive. 240 I receive call my car is ready.$450. Came see if the problem is worse or better. Take care home for a few days. If still happening bring back and we will test for vacuum leak or timing. I show up and my car is revving at 2000 rpms and not dropping at all. Go inside and tell them the issue. I am told told take the car elsewhere. So now I have to pay for a tow and another mechanic to find the errors cause.