Authentic Louis Vuitton speedy 20 purchased in November

Purchased and verified authentic in no berm er, purse came with receipt also and receipt for an authentic strap that did not come with bag, seller didn’t want this size and sold right away… I love it but my book agenda doesn’t fit which is the only reason I’m seeking. Nothing wrong with it. Strap was never used, only the bag, zero damage. Threw box and receipts away but will be authenticated by poshmark again.