Wedding Happinessa Cross Stitch Kit by Vervaco

I'm currently doing this cross stitch. It is very easy to follow for the most part but you can't make any mistakes because you can run out of thread. I miscounted and needed to remove an area of stitches and ran out of one of the colors. Fortunately, I had one very close to it that I could use. Another thing is their color chart refers to colors as 1-7 and there is no indication of corresponding color numbers in DMC listed in case the above happens. It makes things unnecessarily difficult. It makes me not want to order this companies kits in the future.