Hi! I am sorry to hear what happening to this bag
You may would like to try contacting RM customer care, see what they can do for your bag. You can check their repair policy and submit repair request form here; http://www.rebeccaminkoff.com/policies/#repairs
If RM can't take care of your bag, you also can contact "Loving My Bags" in NY - this cobbler has been recommended by RM. http://www.lovinmybags.com/
They did fabulous job on couple of my RM bags.