Blind issue

We had an issue where a string broke in one of our blinds at home, sounds similar where the string is inside the pleated part of the shade.  What I did was to pull the string all the way out from the opposite end, then push the shade together making it as short as possible - top to bottom.  Take small wire, the kind you can get at a hardware store in a coil and straighten it out.  Run it through the whole shade top to bottom and have a small loop at one end of the wire.  Take your string and attach it to the loop and pull it through, good to go.