I would return to the beauty shop and tell them to "match the roots" with the rest of your hair. THEN, find out what color they used to attain this "match", and use it for as long as you need to, i.e., until all of your "colored hair" grows to a suitable length to cut off all but the re-growth, and "start from scratch"). What a shame. I feel bad for you. I put a color on my hair once that "turned orange", and I had to use bleach soap-caps everyday until the orange color "went away", but I can assure you that if you do this, you won't end up with "any brown at ALL., so better to return to professionals to "fix this dilemma. Good luck!