Barclays Account Closed Without Explanation – £230 Funds Withheld

My Barclays current account, which I use in Preston, was suddenly closed last week on Friday without any proper explanation. When I tried to access my account through the app, I only received an error message and could no longer use the account. At the time the account was closed there was around £230 of my money in the account, and Barclays is still withholding this amount. When I contacted customer service, I was told that I have to wait for some Amazon refund cheque so that they can pay me back afterwards, but I was not given any clear written explanation or any official document about the closure or about why my own money cannot be returned immediately. I am requesting that Barclays release the £230 belonging to me without further delay and provide a clear written explanation for why my account was closed and why my funds were held. In addition, given the stress, inconvenience and lack of transparency I have experienced, I am also asking for appropriate compensation.