Best stain remove for red hair dye

[userofthiswebsite]

Got red hair dye all over pillow cases and gone through to the pillow cover beneath as well.
I sprayed Shout on it and rubbed the Vanish rollerball gel over it before running the laundry cycle but it's only come out 50%.
What is the most effective stain remover you've used in such situations?

Permenant or Semi Per?

I got a (semi P) mahogany dye out of my hair with Vit C tablets crushed and mixed into some Head&Shoulders (superdrugs own brand) shampoo. Left it a few hours ...................worked !

Mr Muscle Shout stain remover. It comes in a spray bottle. Spray it on the stain, wait 5 mins then put in the wash as normal.

70
It's permanent. It's a beautiful hair colour, miles away from my normal light blond but looks great when freshly done. I hate the way the colour runs.
I could buy some cheap vit C tabs and give it a go..
Why Vitamin C out of curiosity?

Just
Yeah I already used Shout on it alongside the Vanish rollerball and together they've reduced but not eliminated the stains.