I am in a mobile phone contract and use more data than used to. The data topups are not the best value so looking for advice on best UK 4G sim deals. I have a spare phone so can use that as a hotspot in the car which will stop me going over my data allowance. I would really appreciate suggestions and live in a big city so provider now really an issue for coverage. I know there is lots on google and ebay buy never know if some of those offers are being misleading or not or based on agreeing to paying so much a month. Ideally i’d pay for example £5 for a fixed amount of data with no further obligations.