Hair disaster

So im in a wedding party. The wedding is Saturday. I went to go get my hair colored and told the girl not to use golden colors in my hair as my hair turns red really red thanks yo the irish in me. She said ok but my hair is red. I look like a strawberry blonde and it is horrible. She sed she used a mixture of ash and neutral but i have red blonde hair that is also darker than what i had asked for. Now i have to find a way to fix it and have no money to go get it professionally done. Freaking out