We got some pepsi for a little party, when the first diet Pepsi was open there was no Pepsi taste to it just brown carbon water. What can be done about this we were just going to throw them away but one of the *** suggested we keep the rest to show who ever we could compliant to for proof of what we when through. We had never had problems with this product before. We try to get to the Pepsi web site but contact them, but none of the site had any direct contact point or phone number. How are they contacted about this?