This is going to be the last episode in my series of rants about Royal Mail. It's about the company's inability to respond to questions and suggestions this time.

When you sign up to Royal Mail's opt-out scheme you will no longer receive election materials. However, you will still receive election materials. At least, that's what Royal Mail thinks…

Ever wondered why Royal Mail doesn't send households that register with it's junk mail opt-out scheme don't get confirmation letters and a reminder to re-register? Apparently, It's because sending letters is very expensive for a company like Royal Mail.

You no longer have to write to Royal Mail to get an opt-out form for the Door-to-Door Opt-Out – instead, you can now download the form. Weirdly, Royal Mail claims they're still verifying that opt-out requests are genuine.

I'd like to know what you make of Royal Mail's Door-to-Door Opt-Out. Does it work for you? Have you complained, and was the issue resolved?

Now that the Door-Drop Preference Service has been scrapped we're stuck with Royal Mail's opt-out scheme for leaflets. Meanwhile, Royal Mail struggling to adhere to its own procedures, despite the company's best efforts.

Royal Mail's chief executive, Moya Greene, explains why Royal Mail won't respect 'No Junk Mail' signs.

Royal Mail has yet again changed the address for its infamous Door-to-Door Opt-Out.

Royal Mail has been telling porkies about how much unaddressed rubbish it distributes. They're very sorry.

Senders might not be aware that Royal Mail instructs posties to ignore anti-junk mail notices – and they have the power to demand better.