Unqualified to work on a car

They are not worth even 1 star -

2022-05-13 I am not very happy at the moment. I purchased a car 4 weeks ago, after a few days we felt that the cooling system do not work properly, my husband took the car in for them to check. The then had a bit of a word fight with the owner because he says my husband is saying that they were lying when they told me the car was serviced by them. The oil in the car is thick and sticky and there were no anti-freeze en the water... I rest my case. And after another week we realized its leaking engine water somewhere. We took the car back last week Thursday and after 2 days and having to contact the mechanic, I was told it seems like its leaking into the engine and they have to open the engine. My car is there now for 7 working days with no communication from their side (I had to contact the mechanic the whole time for updates) and I don't have any other transport. Yesterday I asked for a loan car and was told he will ask the owner. Needless to say, he did not come back to me and conveniently his phone is off now. I THINK THIS VERY UNPROFESSIONAL.

2022-06-15 My car was with them for exactly 24 working days (Thats more than a month). 2 days after I received it back, the same problem started and then my head gasket, which they replaced, blew again within not even a week. According to Hyundai and other qualified mechanics, they installed the incorrect head gasket and also the head gasket should be a thicker one. This they did not do!!!