The way it work is you need to physically buy 4 eggs at Tesco (costing you £3) using their “buy 2 get 2 free” offer.
Then grab your receipt and upload it to the app. They’ll refund 100% of the money which can then be sent to your bank account. Click the Orange coloured “GET THIS” below and download the app. You’ll need to complete this offer before the 10th March so be quick guys and girls!