It seems to be a fact of life these days that many people get calls and texts selling stuff – the common ones are accident and payment protection (PPI) claims.
These are often organisations who have somehow got your number and want to sell your details on for a profit.
There doesn’t seem to be much you can do about stopping this, but there are a couple of things to try:
1. Register your phone number with the Telephone Preference Service TPS: http://www.tpsonline.org.uk
This doesn’t seem to make much difference as the organisations making the calls don’t care.
2. Complain to the Information Commissioner’s Office (ICO): http://www.ico.gov.uk/for_the_public/topic_specific_guides/marketing/calls.aspx
It’s hard to see if anything comes from the ICO, although they are now imposing huge fines, it looks like they have only scratched the surface of the problem
Until this kind of thing become a criminal offence it’s hard to see anything changing.