If you purchased a bag from a Fendi boutique or leased store (saks 5th ave has one, bloomies has one), and you still have the original receipt, Fendi will repair the item at NO COST to you IF it is within a year of purchase.
If you purchased a bag from a Fendi boutique or leased store (saks 5th ave has one, bloomies has one), and DON'T have the original reciept, Fendi can TRY to find the reciept for you. If they can't find the receipt, they will repair it at YOUR COST! (as long as the style was in a Fendi store at some point or if the SA knows you bought it from them.)
If you purchased a bag NOT from a Fendi boutique or leased store, they will NOT repair the bag. Example: Purchasing a bag from Neiman Marcus, it must be taken to Neiman Marcus to be repaired.
And if the bag is fake (whether you know or not) they will not repair it at all.