Missed mobile calls are winding me up

I keep getting missed calls coming up on my mobile, which are very irritating. The number called shows up as 020 7295 3600 – when I rang, it says I was called because I have shown an interest in magazine subscriptions in the past, which I haven't. I'm really fed up with getting these calls – sometimes they appear to put the phone down as I answer. How do I stop them, and is it a scam? BB, London You may not be surprised to learn that you are not the only ones getting these calls. The website whocallsme.com , which logs the unknown callers and unrecognised numbers its members receive, is awash with other phone users who are similarly fed up with getting silent or missed calls from this number. The company behind the calls is called Subscription Marketing Ltd, and although it is not quite as sinister as it at first might appear, it is still very annoying. The company is calling people to try and sell them subscriptions to a huge range of magazines and newspapers – including, it has to be admitted, the Guardian. The company says it gets people's telephone numbers from databases of previous subscribers but it looks as though those making the calls are using automated dialling equipment that is resulting in silent or disconnected calls. The Telephone Preference System (TPS) is there to stop unsolicited sales calls, but does not apply here because the company is calling on behalf of companies with which you have had a previous business relationship. TPS says it has received 58 complaints about Subscription Marketing. The best thing to do to stop the calls is to email [email protected] with your number and ask to be taken off the company's lists. If, having done that, you continue to get silent calls, complain to Ofcom, the telephone regulator. Can we help? If you've got a problem you would like us to investigate you can contact us by emailing [email protected] or writing to Bachelor & Brignall, Money, The Guardian, 90 York Way, London N1 9GU. Please include a daytime phone number.