No purchase agreement/bill of sale given, reviewed or signed by me - lease car

I leased a car two days ago. Negotiated the price over email for weeks. Ended up paying about $2000 more than expected. When I called to ask questions two hours later, I discovered that i never received or signed what they called a purchase/buyer's agreement or bill of sale. I had no idea I was supposed to so did not ask for it. Is this reason enough to rescind or modify the lease? Also discovered that my salesperson misrepresented the fees prior to purchase by calling the "dealer documentation fee" a 'title fee." I knew title fee was legit, but never intended to pay for the dealer doc fee (in addition to the acquisition fee). I would have discovered this had I received a purchase agreement showing me where all fees came from. I