that is, steals their savings

SIlly place to bank if you are politically active and not extremely conservative. Short-sighted to have most of the money in any one bank. Still seems wrong the bank stole their money and aren't talking, though.

That’s horrible news to hear, but not surprised they would attempt to destroy them. The Canary (and Novaro) are basically the only 2 British news companies I find are at all trustworthy.

It they're not explaining why then they've likely fallen fowl off anti money laundering laws. Maybe they've had some transactions with sanctioned accounts?

Canary is a shit rag that mainly prints polemic, not fact (just like Novara) but that doesn't mean they should be cut off from services like banking.