Bad service after a purchase

I purchased a vehicle from WeBuyCars The Dome on 21 November 2025. The vehicle itself is fine, but I am from a different province and paid for new number plates and registration fees. I logged a complaint with WeBuyCars customer service in mid-December 2025 after not receiving my new plates. At the end of December, I was told the matter had been escalated. It is now the end of January and I have still received no number plates and no feedback. All my follow-up emails and requests to WeBuyCars are being ignored. This lack of communication and delay is unacceptable after full payment was made.