Company
You could get a current appointments report from Companies House online system, this will give you the identity and addresses of the company directors.
Write to them and demand the company be moved within 7 days.
Also, write to the fraud department at Companies House advising that the company is illegally using your address. They'll then follow it up with the directors but hopefully writing to the directors will solve it quicker.
HMRC should then pick up the address from any changes at Co House.
You could get a current appointments report from Companies House online system, this will give you the identity and addresses of the company directors.
Write to them and demand the company be moved within 7 days.
Also, write to the fraud department at Companies House advising that the company is illegally using your address. They'll then follow it up with the directors but hopefully writing to the directors will solve it quicker.
HMRC should then pick up the address from any changes at Co House.

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