Here's a funny thing...

Barclays has been working with a lot of UK cryptocoin businesses. If I'm correct, I'm pretty sure they're the banking partner of either Coinbase or BitPay. It's hypocritical, they work with a lot of Bitcoin companies, at the same time they'll treat their customers like crap.

Natwest, RBS and Lloyds aren't so bad, they're pretty good about it and don't question it much. Barclays are already known for being the NSA of banking, i.e. anything you do can and will be used against you, and will be questioned, not just crypto payments. I wouldn't touch Barclays with a 10ft pole, even if they weren't against cryptocurrency.