I have been cancelled the vps in 2018 (i canceled the service due to a lot of downtime) and now - in 2020 - they sent to me an invoice for the next two years. I indicated them i am not their client since 2018. They have been threatening ever since. It seems to be a big scam and so they are trying to make an illegal profit. Maybe someone they threaten will pay them. It is better to host at a company where they will not try to rip off you later!