Nationwide blocked my debit card and won’t tell me why

Its fraud team couldn’t resolve the matter and I’m running out of money

I’ve banked with Nationwide building society for more than 30 years without a problem – until last week when it blocked my debit card without explanation.

I’ve spoken to four members of its fraud team. They have been helpful and kind but their suggestions have, sadly, not resolved the matter. I am running out of money and have had to cancel a Sainsbury’s food delivery because I can’t pay for it and will soon be out of food.