Dyson V12 Vacuum Keeps Showing Filter Error—Repairs Didn't Work

My Dyson V12 vacuum cleaner keeps displaying a "clean filter" error every single time I use it. I've already sent it in for repairs twice after video support calls: first, they replaced the filter, and then they replaced the main body, but the same annoying issue continues. Recently, after another frustrating video call, I sent the vacuum in again, only for Dyson to claim there was "no fault" and return it without fixing anything.

This is completely unacceptable. I've wasted countless hours on support calls and repairs, yet my problem remains unresolved. Dyson, either properly fix my vacuum or immediately replace this defective product. I've paid good money for a reliable vacuum, not for endless headaches.