Just got the email saying it's free shipping if you buy 2 gas exchanges this weekend
Has anyone here tried their exchange service?
I think you actually pay £23 per bottle and get a sticker in the box to return the bottles via collect+ (Tesco store) for which they give you a £10 refund when they receive the empty bottle (which sounds like a good deal to me @ £13 a go, unless you have a local home brew shop or independent seller that has the valve to refill them for less)