Urgently need shoes by next day delivery

[wantmorenow]

M&S have royally fucked up. Tried a pair of shoes on in store. Perfect fit but didn't have the colour. Ordered on line and they arrived but I didn't check order. My bad. They are 2 different sizes!
Needed for wedding in Saturday, but travelling Friday. I'm mother of the groom. 🥴.
Urgently need a pair of size 6, or possibly 5, if generous, of totally flat shoes suitable for narrow feet with enough support for bad knees in royal blue. Any one knows or suggest where I can get some ordered from. Live in sticks. 😔 TIA

Update. Found a pair in Bradbeers dept store in Salisbury. A lovely court shoe by Gabor. They had half sizes and all. 🤣 Soft and actually comfortable, didn't even ask the price as was so relieved and over the moon.
Thank you all for your suggestions and kind of you to take time out.

My shoes 🤣🤣🤣

Hooray!! Great news, hope you have a fab time

Next is my first call when I need something quickly. Delivered to store so I have control and can make sure the delivery isn't missed.

They have loads of brands other than their own.

What a relief you manage to find a pair I hope you have a lovely day.