HSBC are apparently..... (The Times today) refusing to accept customer PROFIT monies ... transferred in to their accounts from Cryptocurrency exchanges.
The word PROFIT is key as they will allow customers to pay back in money that they sent to the exchanges.

HSBC are desperate for money as their fractional reserve banking is being pushed to the limit by withdrawals. Also known as A BANK RUN.

The real problem is HSBC pay NO interest and their customers are sending their money away from HSBC to cryptocurrency exchanges.

They hope by this latest announcement that customers will stop withdrawing their deposits.

My advice is that if they don't want your business you should close your account.
Before they close themselves.

AJMHO. All just my humble opinion.