Louis Vuitton Riviera

[dockizz]

Purchased from EBay seller insists item is authentic and I can’t find a date code; Help!

 

[mdcx]

Try under the pockets, imprinted into the leather. Here is date code of another Rivera:
https://poshmark.com/listing/Authentic-Louis-Vuitton-Epi-Leather-Rivera-Bag-5b3d35ff03087c8416a283be