Listened to part of “ Money Box“ on R4 lunchtime today . Did not hear all of this part but it sounded very interesting . Currently HMRC charge 14p per minute when they hold you in a queue before answering your call . Their caller response is cr*p as I well know because I have yet another bit of a battle with them and have wasted time and money unsuccessfully to contact them using their 0845 number . Anyway it was suggested on R4 if you find out, I think , the international number to ring HMRC and then prefix with 141 you can make a call at a much reduced rate . Can anyone confirm the details …. as I say I only heard part of the broadcast . If this is correct presumably the technique will work for other organisations .