bank letter instead of statement

Thank you all so much for your advice over the months.
I am preparing my documents together to apply for the entrepreneur visa. I was thinking of providing bank letters for the maintenance, the 50k funds and business acc instead of a bank statement. Please can you advice if it mandatory to provide a bank letter and statement showing the 50k funds?
I will appreciate your response at your earliest convenience.
Thank you

Hi Sonye

Well, its totally my opinion derived based on my experience, 'it is best to supply both, however, if circumstances do not allow you for that; then either of them will do.

Having said that your caseworker can request them afterwards. We have come across variations of issues regarding bank letter such as only statements, only bank letter, bank letter with incomplete bank statements etc etc. and in most of the cases, caseworker has asked for further documents later. And it can prolong the decision time.[Given your case worker is well educated of the situation].

wish you luck.

Ok thanks a lot

I provided both as well.