Very sorry to hear of your mum's loss of her pension.

My parents live down South and recently there has been a spate of similar things happening. Lots of adverts in local press and the like but still they manage to get away with things.
My Dad recently answered a phone call from some blagger trying it on with ' Hallo /mr...., My colleges and i will be in your area and will call to see your gas appliances.'
Dad let him carry on with his speech and tried to get a little more matey with Dad. '....is it Mr... or what does the E. stand for? Ernest?
Dad said well my friends call me .... but when i was working it was Superintendent.
The telephone line went quiet and there was a loud click.

Dad did not say he was an ex Policeman and he was a Superintendent but of an Engineering works.

Hope the blagger got the shock and kept well away from Mum/Dads area.
Keep the faith and do not let the ba*tar*s grind you down.

8-)
DaveL