Stitch Fix reviews

I have been a very high performing stylist for over a year now. They have not given me a raise and I was reviewed. My personal opinion is they are trying to keep costs low before the stocks go public. I feel very under appreciated and there is no clear path for growth. Every time I ask management what is going on with my raise they say " we will have an answer next month". Not cool. Personal stylists make an minimum of $20 an hour. I feel they have taken my skill and capitalized on it without compensating me fairly.