Underhanded actions

Good day Netstar management. I'm writing this complaint because of unsatisfactory response I received about my enquiry when I received an invoice for the very first time from Netstar in August 2026, I've never received any invoices from them before this. When I enquired, telling them I didn't receive any service from them and the car they are referencing is a car I no longer own, so how am I receiving an invoice in August 2026. They told me I received the installation and service in 2022, which never happened and it also does not explain why they are only sending an invoice in 2026 if the installation was done in 2022.