Manhattan Beach Appliance Repair

I ordered an oven online (not from Manhattan Beach Appliance Repair) and called to get an installation quote. The representative said they would send somebody out to provide an estimate (for $ 20) because they couldn’t provide quotes over the phone. Fine, I said.
Later that day, the service guy they assigned called to say that he does only repairs, not installation, and that the office would call me back to schedule somebody else. Not wanting to wait another day, I called back immediately and spoke to a different representative, who, sure enough, wanted to reschedule someone for the next day. I wasn’t happy with that, and at my insistence, I finally spoke again to the original representative, who then actually did provide me with a quote over the phone, and set up an installation appointment for 3 days following without needing to get the in-​person estimate first. It was a fair price, and I thought great. All I had to do was call back in the morning with the brand of the existing oven and its outside dimensions.
I called back in the morning, and spoke with someone who is apparently the owner (nobody else would dare be as rude as he was to a potential customer). He brusquely informed me that his business only does repairs, not installations. I told him that I had spoken with Vincent the previous day who had set everything up, but his response was an irritated repeat that he still couldn’t do it. After I hung up, I decided that I was treated pretty badly (it’s not my fault that his employees screwed up). I called him again and asked him what his name was («Al») and for an explanation of what happened («they have a new dispatcher»). He didn’t apologize for wasting my time.
His explanation doesn’t say why two different phone representatives apparently don’t know what his business does, and it certainly doesn’t excuse his rude phone manner.
Thanks, but I think I’ll stay away from a business that treats its potential customers with such contempt.