Hey everyone

I've never bought a designer bag in my life, but I've been wanting to buy a Balenciaga for a while, and I'm trying to save for one. I want the black first, I think it's called that! I was just wondering if you could help me?

Where is the best place online to buy one? (I'm in England)
And am I right in thinking they don't make them with the flat studs anymore like Sienna's one in this pic?
edit: please do not quote images
Sorry if this has all been answered before!

pic credit: siennafan