Taxis Still Parking on Double Yellow lines

It is 4weeks since this was first reported. No response received from CCC. Taxis are still parking on double yellow lines & performing u-turns often without any consideration for other road users (including pedestrians). This is a public car park access road. This would not be tolerated if it were "normal" car drivers - the Council seems to be bending over backwards to accommodate National Express & the taxis (as they used to do outside Central Station where taxis parked for years where they shouldn't have been) at the expense of Joe Public.