Chiquito are offering students getting their A-level and GCSE results free chicken and chips, valid of the 10th to 12th August. Just need to show your results. No minimumn spend requirement for the offer, so genuine freebie if you are eligible and have a restaurant nearby. Not sure what the usual price is for chicken and chips at Chiquito but seems a decent freebie.
Most restaurants are open from midday to 10pm but check your local opening times in case they vary, store locator link below.