imnot sure ifu have the samething were u r but there is healthy start were i amand they give u vouchers worth 3 quid for formula and u usually get8 vouchers.
You can also go to your health department and they might have some coupons or couponbug.com or let your local grocery store know and they might be able to help, also check with your doc, your peditrician, and your hospital they might have coupons or even know where you can get it for a better price. Also maybe you could find someone who would be willing to sell it to you in bulk for a cheaper price.
You could go to the Nestle site because they may have promotional coupons. Also, sign up for their mailings and they'll send you coupons all the time.
Check out Freecycle and craigslist, too, because you may be able to find some there.
Last, WIC is a government program designed for working families who have an income of up to $30,000. So you may qualify.
you can get the good start formula through wic... does your family qualify for that?