Just found a knock off of my gown and I’m upset I paid full price :(

I paid $7700 for my wedding dress (after getting a discount). here’s my dress: https://www.sen-studio.com/ss26/strapless-lace-ballgown-with-slit

I’ve been looking for lace similar to the edge for a custom veil since I didn’t like the matching one, and I stumbled upon an EXACT copy of my dress for like half the price: https://shopbirdiebridal.com/products/catherine-wedding-dress

And now I’m upset because I feel like I threw away $4k… and the dupe doesn’t have a slit which is the one thing I wanted to change about my dress ☹️