there are a lot of stores in Kuwait that sell fake brands (Chanel - Dior - Gucci - LV - Prada & more ) but look so real. I will give you some places that I've personally been to but I'm not 100% sure they sell Gina shoes but why not try maybe you'll find them there.
Places that sell fake brands but look 100% real :
1- Q8dokan (Instagram it)- its a house in Kaifan and they open from 4:30pm - 8:30pm and the stuff look so real
2- Souq Al Salmiya - there are lots of stores filled with brands that sell fake stuff but they look fake
3- Souq Al Mubarakiya - There are stores that sell fake stuff also and they look real they are in the normal Souq Al Mubarakiya and there is one in the basement which is full of makeup !
4- There are shops in front of Old Navy and Zara Home which have stores that sell fake shoes
5- Try Hazar store (instagram it) they are in Fanar Mall and Bairaq Mall in the basement (BUT WHEN YOU TAKE OFF THE SHOES IT IS WRITTEN HAZAR NOT GINA SO PEOPLE WILL KNOW ITS FAKE SO BE CAREFUL !) but the prices are so reasonable like most of the shoes are 15 kd some might be less some might be more