A Wireless Misleading information, false information to make a sale. Cranberry Pennsylvania

I was given false information by a salesman in order to make a sale.  We were told we were signing up for the edge program and could upgrade our phones after 50% of our phone was paid for.  When I went to upgrade after 50% of the phone was paid for, my upgrade said it had to be 100% and I would have to pay 400$ to upgrade my phone.  When I contacted the manager to complain, they told my husband and I that they switched that.  Switched that!!!  To my fault, I didn't check the contract I actually signed.  It was not the same information that they told me to sell me the phones.  Very disappointed in the dishonesty.