BHS 20% off day - cardholders only

MoneySavingExpert.com has just posted the following message with the title BHS 20% off day - cardholders only.

I was in Bhs today and the sales assistant told me that next Thursday its a 20% off day for card holders. But to get the 20% off you have to sign up for a Bhs credit card:( Now the thing is, I'm not interested in having a credit card. Its just hassle to me. I definitely wouldn't want to spend on it, as then I'd have to remember to pay it etc - I only spend money that I have, so I'd far rather just put it on a debit card, no bills to pay etc. If you take out this offer do they let you show the cc to get the discount, but pay by other means (eg debit card)? Also, if I have a credit card which I never, ever use (eg I just consider it in the same way as my clubcard etc) will they get stroppy about this and cancel it, and does it do any damage to my impeccable credit rating? Finally, apart from these special discount days, are there any other reasons to sign up, eg do they send vouchers etc?

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