I’d need to know a little more to answer this accurately - what information are you missing? Most banks will ask to see your company formation documents and photographic ID and proof of UK address for at least one director and all account signatories. These should all be things that you can easily obtain. If cannot provide this information, you will be unable to open a business bank account.
You should contact a few different banks whose accounts you are interested in to see what they would need from you. Best of luck.