Here’s an old favourite that they like to drag out from time to time. This voucher code is always doing the rounds in one form or another.. be it WHISPER, WHISPER1, WHISPERS .. give them all a go. It’s confirmed to be working at various places, like Leeds, Bristol, Farnborough, Emersons Green, Hull, Oxford, Rochdale, Colchester.. let us know in the comments if it works for you! Enter it at checkout etc, you know the drill. But you cannot have ice cream in your basket, or drinks.. that make up the £25.