"Some weeks ago Ladderstore and I 'enjoyed' a bit of a kerfuffle over delivery of a stepladder which matter was resolved by the kind intervention of your Mrs Robinson.
I was so impressed with her response that when my daughter required a much larger ladder for her house in Glasgow my choice of supplier was Ladderstore: no other research was necessary.
When I ordered the ladder I asked that Mrs Robinson be informed. I can't know whether that was done but nothing is lost in repeating the sentiment.
Kindness begets kindness: trite but true." Bob