Window World review: Not trustworthy

They installed my windows about 15 years ago. I recently discovered that the caulk around the windows had worn out and needed to be fixed. While inspecting the windows, I discovered that a trim piece had been put on incorrectly. Called them and was told they don't warrant caulk, trim, or any plastic molding. Should have read the contract, but the guy that sold us the windows said everything and anything is warranted for life. He says that's why Window World was the best. The guy who owned the franchise no longer owns it, a lady named Glady's does. Talked to her about trim that was put on wrong, and she insinuated that it fell off and that I tried to replace it or that I had removed it. She was very HATEFUL. Said she would not warranty the trim piece, as the warranty only covers the window, even though they placed it on wrong. Guy came out to give me an estimate to recaulk the windows when he discovered that the plastic frame around two windows was sagging. He wanted to put screws in it to fix it, and I said it should be covered by warranty. He said he would give info to Gladys and she would call me about the estimate. Two weeks now and no phone call. I called the corporate office and was told that since it's a franchise, they can't do anything. And that actually nothing is covered because the old owner doesn't own it anymore; Gladys is the new owner, and she can't be made responsible for any bad work or for the windows since she didn't install them. Nothing was said about if old owner sold it to someone new; basically, the warranty is no good because new owner didn't install them. THIS PLACE IS A SCAM.