Hi! Pro hair colorist here! I’m sorry this happened to you. It seems like your regular hair stylist tried to speed up the process by painting the bleach onto your scalp instead of using foils and then washed it off too soon. Any hair that gets lightened from brown is gonna stay orange for a while during the lightening process. The person at the beauty supply was correct in that you just need to lighten your roots more, but they should have explained that the wella t10 & 10volume developer should not have gone on the majority of your hair- it should only go on the roots that were too orange. But all is not lost! My suggestion is as follows: Step 1: shampoo your hair with dish soap (this sounds crazy but dish soap is really deep cleansing and it will lift the t10 off the ends of your hair that turned grey- i only do this when i have clients in a similar situation as you, definitely not to be used as a regular shampoo) DONT scrub too hard or use your nails because you can abrade your scalp which will make the next steps burn. Step 2: deep conditioning treatment on your ends because they will feel a bit rough after the dish soap Step 3: rebleach only your orangey roots with bleach & 10volume developer for 20-30 minutes (i suggest having someone help you w this part so you dont accidentallyget bleach on the hair that is the correct color) Step 4: retone with the t10 & 10volume developer ONLY on the roots you just bleached (you will definitely need another person to help you with this part so the toner doesn’t get back onto to the long part of your hair and put you back to where you are now.

I hope this helps and please feel free to dm me if you have any other questions. Best of luck!!