Unhappy customer

Good day, could someone please cancel whatever was sold to me by 1 of your consultants today. I've called your contact centre and was told they're busy with the cancellation in the background. But that guy didn't convince me at all. The sales guy gave me 2 specials, on both my contracts, but I need someone to confirm the other special he offered me. It juat didn't sound correct. Please also tell me, how could you add charges immediately after me talking to him over the phone, if I haven't even received the phones and when I ha e 14 days to decide if I want to keep the contract???? PLEASE reverse everything that was added to my "bill so far" and take my contract back to what it was with immediate effect