In this wonderful time of isolation and staying in my battery keeps going flat and I have to use a booster pack to jump start the car, so I have been looking at a Solar Battery Maintainer from Halfords, they only do click and collect these days so you have to pay online. It would nice to use our discount but looking through the site I cant find anywhere that has a code we can use to get the discount. Anyone know what it might be?

Unfortunately you need to present the card in person at the store and if they are remaining contactless then it may be difficult to obtain the discount at this present time.
However it may be worth phoning your local store and asking if they could make an exception in this instance, worth a try at least