@Mark ****
Ah that sucks, yeah do the 3 previous month's worth of statements then the print out with a note - you may have to do this in a word document and print that to PDF and then combine it into the final document - stating that your bank only issues end of the month with no other options with the next one due to issue only at the end of March and not before then, and that you've uploaded 3 months worth Dec Jan and Feb.
That way you're covering bases and explaining why you can only provide these ones. With the highlight of course.