True story: at the beginning of the summer I called my normal ac repair company because my unit wasn’t cooling right. The assigned tech told me he added 5 pounds of freon, $265 I think it was. Then ac completely quit working. Called another guy who charged me $70 to REMOVE 4 pounds of freon. AC worked great. First company told me they would refund most of the cost. Never did. My new rule; use the owner operator, not the chain store.
Yup, I’ve seen the same thing. I used to do that kind of work. Hence my handle reference.