Bank rec says that statement balance and cleared balance match but on rhs of screen im being told there is a difference of £450?

Hi there, julie37.

There are a couple of reasons why the difference isn't zero when reconciling an account. This includes account mismatch, incorrect number of transactions, or duplicate transactions, 

To help you resolve the issue, please open this support article and follow the recommended troubleshooting steps: How To Resolve Reconciliation Differences.

The Community is always here if you have other questions.