£5 discount code on purchases made at Robert Dyas.
Not sure how long it will last for but worth making use while its available and also works on sale items. Orders over £50 get free delivery with code FREEDEL50 (you must apply this code at checkout to get Free Delivery)
For orders under £50, standard £3.95 is applied, but if you use the above code, you can save on delivery and a little bit more! let me know if it works for you or not, and will amend post accordingly.
(Code tried on the Nutribullet and Salter Pro at checkout and it worked)