Red Bull’s seasonal Summer Edition is back, and you could get a free four-pack to try. With its lighter, fruity twist on the classic energy drink, it is the perfect pick-me-up for warmer days.

Simply register your details for the chance to receive your pack at home. As with most giveaways of this kind, stock is limited and allocated on a first-come, first-served basis, so do not hang about.

It is a no-cost way to sample the latest flavour before deciding whether to add it to your shopping basket.