SPAM COMPANY

This company keeps sending me threatening messages stating that they are going to charge me and take legal action against me if i dont pay an amont owing to them. I had spoken to this company last in 2023 and they did not respond on what basis did they reach out to me, however they decide to respond now in 2025 and they are threatening me to pay a huge sum of money. Please can I get the detailsof the credit ombudsman, I want to take legal action against this company, and further social media. Please can someone assist me.