This has been posted in various forms previously, but most seem to now have expired. The carling promotion for £20 off kitbag is still running and can be used against offers also on the kitbag website. Purchase a promotional 4 pack and redeem code via the carling app, or the codes are on the bigger 10, 15, 20 can multipacks.
Currently 50% off various international kits. The Uruguay shirt is 20.99, so 99p delivered. Other shirts are also available for less than a fiver delivered using the code. Each code can only be used once and the 4 packs are around £3.50. Great for kids who just love football kits like mine.