Best Buy Canada

Bought sony tv in 2017. Paid for extended warranty. Tv stopped working august 10, 2020. Contacted best buy. Parts were ordered and shipped to me. Best buy tech. Came by on august 19. Unable to repair tv. Told me he had to order some other parts. Got an email from best buy yesterday...
"your in-home appointment appointment detail(s):
Rescheduled
Order: 60647746
Service date: september 8, 2020
Arrival window: 7:00 a.M. - 1:00 p.M.

The soonest they can repair my tv is 20 days from yesterday?
Extremely dissatisfied with best buy at this point. Have spent a lot of money at best buy over the years. I think those days are over.