As you can see by my name, I do machine embroidery. Don't take it back to the person who did this, obviously by this big mistake, they will make a mess of the correction. The stitches can be carefully removed. the needle holes can be closed by slight tapping with water & soft rubbing- very gentle..The second stitching needs to be just ever so slightly larger to cover any needle holes- little looser tension and good backing. Have the next embroider run a sample to show you, I usually do this at no charge, customer satisifaction is very important. Lastly, you might want to check out the iron-on lettering at fabric stores. Some are excellent, you can do the rip out & replacement yourself.