So I've just made my first Balenciaga purchase, and it is a Blue India City !!! But since I'm new to this brand, I'm kinda confused with the model, serial number etc to authenticate the realness. I will only get it next week though but I just want to know for you that has it, will the number on the plate, back of the leather, card be the same for all BI City? If so, may I know what are yours? I'm so excited to get this bag, I've been lemming for a blue Fendi Spy bag long time ago but glad I waited for this instead . Thank you for your help!