They ask for mine every timeHalf the things on the Halfords website seem to have a "price match" tag next to them too.....
As above I've click & collected, paid in store and got the BC discount a few times - they've never actually checked my card though so they don't seem too bothered.....
Was a very knowledgable chap working the Halfords cycle area the other day so I was chatting to him for ages. I think he may have given me the discount just to get rid of me....They ask for mine every time
Track through quidco for cashback generally. But keep the order confirmation number, and not just the receipt. This is needed for a quidco payment dispute as I found out to my chagrin recently. I no longer had the email, Halfords had no record for some reason, and I missed £16 cashbackFor an extra discount, if you have the payment card registered with Quidco you will get 3.3% when paying 'instore'