A problem was identified by the technician during the visit last winters, it required material, time and substantial effort. It involved coating and sealing a hole through which air was leaking. I was quoted $280 for that and that made sense ..
Now during this visit, the technician couldn’t replicate the exact problem identified last time, and just added a glue tape in 5 mins, something I could have done easily too..He too felt uncomfortable charging $280 and then asked for $200 after I asked.
To be honest, this was not the fix needed ( you can check with the technician who originally found the problem) and moreover - the current fix was not more than $50 dollars in my opinion..