I have had a Mozo account about 6 weeks. I opened it to be able to transfer funds to Coinbase. Over the weekend just after Christmas an acquaintance transferred £1500 to my Monzo account from their Chase UK account. I went to upload it to my Coinbase exchange account and Monzo stopped the transfer and froze my account. No explanation was offered. I was asked what the money was being used for. As I don't believe in banks dictating what you do with money in your account and this isn't China, I told Monzo to F/O. They then spent a week harrassing me for information which I refused to give them, then decided they were going to close my account (something I told them I planned to do anyway after my balance had been transferred). Why does it take 2-4 weeks to transfer my balance when everybody knows transfers take seconds? I predict Monzo and any other bank that dictates to its customers, will go out of business. It's not surprising cryptocurrency is so popular.