She called me a "scammer" what would you do?

[lalloooddo]

I sell lots of bits on vinted
All very good or brand new items
A lady bought two tops -one Zara top new with tags and a stripe H&M top
The Zara was £3.50 (tags £15 ) and the H&M was £1
As I was packing I noticed a small stain on the H&M top...so I messaged her explaining and asked her if she would like to cancel the other and also asked if she wanted to cancel and re buy the Zara top and I would either wash and put the H&M top in for free or just pop it in for free and she could wash herself.

She replied quite nastily saying
I know about scammers like you ,trying to sell stained items ,hoping you get away with it

I wasn't -I have over 500 5 star feedback
I was offering to send it for free and she could just pay for the new with tags item

Did I handle this wrong?

No, she’s a dick.

No, she was rude.

Can you cancel the sale?

She was a dick. Cancel the sale if you can and refund her.

No she’s an idiot, how is that possibly a scam, can you cancel the order? It’s not worth the hassle

Yeah I can cancel
I think I'm going too
It's not worth the hassle

If you were a scammer why would you be honest?

Well exactly ! She said because I expected her to say okay il have it anyway

Can you block her? She sounds unhinged.

Don't sell to someone who will give a bad review.