Of the three paper directories that can be cancelled via junkbuster.org.uk only one has the courtesy to acknowledge opt-out requests. The (almost) Good Guy is Thomson Local. When you cancel the Thomson Local directory you'll get a letter confirming (or rather, implying) that you've done so. Both the Yellow Pages and BT still have a policy of ignoring customers.
Thomson Local's standard letter is rather minimal though. It doesn't actually confirm that you've opted out, and it doesn't tell you for how long your address will be opted out. Let alone that the letter mentions who to complaint to should you get another another copy of the directory. Instead, the letter blabs on about iPhone and Android apps:
Dear Sir/Madam
Thank you for contacting thomsonLocal.com [sic]. We understand that you do not wish to receive a hard copy of the directory. However, we can continue to help you to find what you need locally;-
If you have an iphone – the free thomsonLocal.com app can be downloaded if you go to the app store and search for thomsonlocal.com.
If you have an android phone – the thomsonLocal.com [sic] app can be downloaded for free by going to the android Market and searching for thomsonLocal.com.
Alternatively, we provide an online service with www.thomsonlocal.com.
Your sincerely,
etc.
Not very helpful, if you ask me. I'd suggest rewording the first paragraph as follows:
Thank you for contacting Thomson Local. We understand that you do not wish to receive a hard copy of the directory. This letter is to confirm that we have marked your address as opted out.
Please note that the opt-out will expire on [DATE]. We will contact before this date to find out if you wish to remain opted out.
Thomson Local is committed to respecting people's preferences. Should you receive another hard copy of the Thomson Local directory, please contact our distribution team at distribution@thomsonlocal.com, or phone our customer helpline on 01252 555 555.
Clearly directory publishers still find it difficult to say that they're committed to respecting people's preferences and to give them the information they need (see also Slow progress). Yet, Thomson Local deserves praise for making an attempt. If anything, the letter is much better than the company's previous confirmation letter.