Ridicilous

So my Capfin account was handed over to Ver-Tex solutions. I made a payment and got a call from a lady on the 28th telling me that if i pay a certain amount in the next 30 days i will get a discount. And that it would be the end of that and settled. I phoned this morning 8 days later to make the payment and just want to confirm account details for her to tell me the special is no longer valid??!! So in order words when they offered me the special giving me 30 days to pay they actually meant pay now. And then to also push up the price to even more than what was agreed upon between me and Capfin.