Over the last four months I had food deliveries from Tesco.over three weeks I ordered the same item a total of five times to be overcharged on delivery by over a pound. I notified them six and they said they would change it on there system. They never changed this so I spoke with customer services and they told me they will change this but it takes time and they can carry on overcharging till this is done. Over the last two weeks I have had three shops and been overcharged by 4-5 pounds on each delivery. They have refunded the overcharge but they only refund when customers check there invoices. I believe this to be fraud and I have notified trading standards. If trading standards do not take action I will be using Facebook. Next door. YouTube. and other apps. To let the country know what they are doing. I will update as soon as I get a reply from trading standards although I have been told it can take up to three months. So over the next three months I advise you all to check your invoices.