I DISAGREE with the survey which named taxi drivers as the nation’s grumpiest workers (Echo, June 1).

Those who answered the survey must never have travelled with Clarks Taxis, Ferryhill, also known as Ferryhill Taxis and Advance Travel. All the drivers and staff in the office have always been so pleasant and polite and very helpful.

Mrs P Curley, Bishop Middleham, Co Durham.