This is SO NICHE but I have lost a button on this Mango coat - https://shop.mango.com/gb/women/jackets-and-suit-jackets/fur-effect-coat-with-appliques_57047713.html
They don’t provide a spare button when you buy it, any ideas where I might be able to find the button or something similar?
Oh no that’s so sad, it’s a lovely coat worth saving if you can find the button! You need a haberdashery - there used to be a section in John Lewis on Oxford Street but I don’t know if it’s still there. They have a smaller selection online. Otherwise worth searching for your nearest independent haberdashery and taking the coat in there to see if they can match it 
It is still there at the top of John Lewis! It might be worthing popping in there if you are on Oxford Street soon x
This is not niche as this is exactly what happened to mine!!
I bought some replacements from Etsy. I can’t find the actual link but they were similar to these :https://www.etsy.com/uk/listing/1411503173/leather-buttons-brown-football-design?ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=leather+buttons&ref=sr_gallery-1-1&frs=1&sts=1&organic_search_click=1