Computer Works

Took my laptop to get a DC port replaced since it would no longer charge. Went to BestBuy and they sent me to this guy. it’s a small hole in the wall shop with lots of outdated products on the wall. I was skeptical at first, but he seemed very knowledgeable. He told me 3 – 4 days to have my laptop done.
Now, my laptop is used for school (college) and work as well. I was quoted about $ 80-​$ 100 and said ok i just need it fixed asap. one week goes by with no call, so i stop in. he tells me he had it fixed but then he broke the ribbon /​wires inside my laptop that go to the screen and now it wouldn’t work, so he had to order more parts and said give him another 3 days.
another full week goes by with no call, i stop in and he hasn’t touched my computer because he has been «busy with other businesses computers» due to a recent power outage. I told him i was upset and i needed it because i was falling behind on work and he told me he would move it up to the top of his work bench and to come by tomorrow. I gave him 4 days, and he still hadn’t worked on it. As of right now, it has been about 1 month and it isn’t fixed. Replacing a DC port is not hard, it’s a 4 hour job but i didn’t wanna go in and mess with the soldering so i took it in. This guy is HORRIBLE. 1 month to get a 4 hour job done?
I will go to BestBuy tomorrow to let them know about this. im extremely upset.