Maxim Motor Sales Alex is the owners name They caused damage and additional repairs to my car Elkhart, Indiana

I took my car here for them to fix a small part in my car door because my drivers side door would not open from the inside but it would open from the outside. When we went there the first time, they ordered the part from the hyundai dealership and we paid for it. We called several times to see if the part was in, they called back and said the part was in so we went to so they could fix it. When we got there, the mechanic said it will take him 30 minutes to fix it. He didnt fix it. He caused damage to my car and caused extra additional repairs. I asked him why he didnt fix it and now my car door wont open on the outside either. He would not answer me so I demanded the manager/Owner. The owner showed up and said they will have to order an additional part and I said that was completely unacceptable and I demand that they fix it. The owner then threatened me so I left. Now i have the pain and suffering of having to climb through my trunk to open the passenger side door and then climb through from the passenger side to the drivers side to drive my car. I have called several times and the owner and the mechanic yells over the phone and hangs up on me. This is unacceptable and I paid money for nothing because it wasnt fixed and now there are damages to my car and more repairs that are not necessary because of this.