How do I make school shirts white after blue cardigan ran in wash? Help pls

[TaighNamGastaOrt]

I usually wash whites seperately. School back on Tues, SD has new uniform. Her mum didn't wash it so I popped it in with our wash. New blue cardi has turned white polo shirt pale blue, how do I get it white again?
Currently soaking in Oct action whites stain remover.
Am I going to have to buy new ones??

Bit of bleach?

Colour catcher?

Too late for colour catcher! I usually do use them but couldn't find them! Can I use bleach??

Bleach in sink with warm water.

I've used bleach to re-whiten stuff without any ill effects.

It's still soaking. At this point I'll likely try bleach as I have nothing to lose! It's only a polo shirt but I can hear her mum now!

There's something like Colour Catcher, but for these situations. Same make, I think. Or I wonder if a net-curtain whitener would work? Or Ace Bleach (found in all good pound shops!)

Is normal bleach ok? Or do I have to buy something tomorrow?
Argh I'm usually careful with whites! Today, my adulting is crap
Thanks for suggestions, appreciate it!

I use that bathroom spray that removes mould. Works a treat. Just be careful that it doesn't get on anything you don't want bleaching

Yes normal bleach is fine, you don't have to buy anything fancy.

You get colour run sachets usually neat colour catcher in the supermarket. You have to soak them with them. I had a navy and white shirt and the blue bled into the white - they worked brilliantly but I think it depends on the composition.

Hang on the line for days and days and days until the sun gets it white again.

Is there a school badge on the polo, wouldn't the bleach bleach that too?

I once bleached trousers ( me a teen) but it must have loosened the material and half way through the evening they fell apart

Thanks EvenPhilip I've normal bleach in. It's more the fact her mum will start if I don't sort this.

Does it have a logo on it? If it does I would be wary of using bleach. When this happened to me I used Dr Beckmann’s colour run remover. Really worked.

Bleach got the pink out of my sons shirts

Bleach and hot water. Let the shirts sit in the hot water and then add some bleach and leave them to soak.

Is it just a supermarket polo top? I think I would just replace it for a new one, they are only a couple of quid each.

Went to supermarket. Bought two new ones for cheaper than the stain remover.
Job done.
I will attempt bleach also but at least I have a back up plan!
Thanks

The mum must really be a piece of work

@EvenPhilip there aren't the words. But I keep my big gob shut for the kids sake. They never asked to be on this situation.