So the bundled provider is asking that you move to your document? Now you have an excuse, er, a reason to charge for the restatement. "We would have been happy to use your current document, but provider X has asked us to restate. Rather than risk a compliance issue down the road, we recommend that the plan be restated now at a cost of X, which represents an XX% discount from our usual fee". Should you be so inclined to discount.
Kevin