SOME time ago, I took measures to prevent myself being pestered by inland commercial telephone calls.

I am unsure whether such action is possible with respect to those originating abroad, notably the Indian sub-continent.

Recently, though, I have been asked how many years ago I applied for my loft insulation (my flat being on the middle floor), whether I was satisfied with repairs to my non-existent vacuum cleaner, and, the following day, likewise regarding my equally lacking computer.

Then, to crown it all, another unsolicited communication from strangers consisted of a recorded message stating I was one of 100 people especially selected for free help with financial, medical or other difficulties and wondering whether I, like so many satisfied individuals before me, should be interested in such a service.

Have I just been unfortunate or does the use of such loopholes represent a growing trend?

DAVID DIMENT, Riverside Court, Oxford