We bought this house two years ago. Just before we moved in the previous owners let a cleaner/house sitter stay in the house for a couple of weeks. Since then we've been receiving mail for her. At first we just put it back in the post stating on the envelope that she wasn't at this address. The post kept arriving so we contacted all the companies that wrote to let them know she wasn't here. However, we're now receiving demands from debt collectors. The letters are still in her name but it's our address that will be affected. We always ring the debt collectors/bailiffs and return the letters but it's getting to be a real pain.
What can we do to stop this woman using our address? Is this a police matter?