Lidl Plus - THE BIGGEST SCAM. I've had it three times now that Lidl overpromised and overcharged me when I changed my purchasing behaviour due to Lidl Plus, just to find out at/after the checkout that coupons couldn't be applied due to "technical errors". They've overcharged me over £30 now. I've contacted customer support about it and after wasting my time with some nonsense back-and-forth emailing they essentially said it is my problem. Such a scam and I'm surprised no one has taken legal action against them yet.