Ordering and replacing (the wrong) parts without asking me first. Non-existent customer service

Had my car there for a burnt exhaust valve. I was promised the car will be ready by Friday. I even called on friday to confirm, when the lady told me I can collect it at 16:00 When I got there I was told it will only be ready early the next week. After having a calm, but very unhappy discussion with Lester about this, he suddenly bacame quiet, turned his back on me and dissapeard back into the workshop.

Three weeks after this initial repair, my car had some SERIOUS difficulty starting.

Took it back, and they replaced a sensor in my engine without quoting or asking if they can go ahead. It even turned out that this sensor was not the fault.

Took my car back again two days later for more diagnostics. They said the new headgasket they installed the first time was now leaking. Said the headgasket repair will be at no cost to me. The following week I called again when they informed me the headgasket is actually not leaking, and they actually need to replace a different part which they ALREADY ordered, AGAIN without letting me know what was wrong or how much it will cost. Luckily I collected my car before the part arrived.

During all three times my car was there in the period of less then a month, I didn’t receive any feedback during any of the diagnostics or the repairs, unless I called them to follow up.