Esso on edr half of pumps working both fuels minimum purchase is ?30 maximum ?45 .I asked the fella inside about the money limits, he said its to deter people who are topping up their tanks is ?5 ?10 ?15 and making the queues longer for motorists who might need fuel more .I said put a sign up outside stating the limits so people know..you've got small notes on the pumps telling people.you can't see these from outside so motorist will still queue.could cause a problem for some .