Some UK solicitors and advisers use LetterLink so you can respond to their letters online, quickly and with no obligation.
You'll find it next to the QR code, or at the bottom of the letter.
What you can do
Book a free call with the person who wrote to you
Get the free guide mentioned in the letter
Ask not to be contacted again
Each page shows the firm that sent your letter, who regulates them and their privacy notice. Each letter has its own code, and the firm can see when it has been used.