I would go back if i was you, i was missing one of my months ststments so reordered(was able to do by phone). The Bank charged me 5 pounds but they had all the details such as my name and account details and printed in the same style as all the others.
It might cost 30 pounds (if your missing all statments) but i would think it well worth the cost.
When you send them don't forget to get copies of the statments if you want to keep the orignals. As if you just send in the orignals they will keep them.
Like Pauldo writes Finance is an area where the Embassy will take much intrest if anything seems out of place.
I had six months of Pay slips,last years P60,six months bank statments,some example of utlity bills,a letter stating im all up to date on service charges on my flat, a copy of my council tax bill, even printed out a list of all the direct debits before my wife came and what i would have once she was here.
My thinking behind this was to show i was coping now and should be ok once my Wife was with me.
Better to send to much than be requested to send or bring more.