I really dislike Halford's scummy approach to marketing and email harvesting.
They started asking all customers if they would like to provide their email address so they can "send them the invoice receipt in PDF". No "would you like to sign up to our marketing list?" or anything, just an email address please sir.
Do I believe it won't go into the Facebook email API to spam Facebook people with Halford's advertising?
Do I believe it won't "accidentally" auto-enrol me into someone who has "declared an interest in Halford's marketing"?
No. I am buying £20 of engine oil. You do not need my email address for that.