Addressing the issue of being sent threatening letters meant for a previous tenant

Since moving into a new home we’ve been receiving huge amounts of their mail ... one from bailiffsI bought my first home 18 months ago and have since been receiving huge amounts of mail for a previous tenant – including fines for traffic violations, and what looks like information on outstanding loans. One was a threatening letter from bailiffs saying they would shortly return to remove items. We were able to resolve that one by updating the electoral roll and sending them some infor