Are you sure that’s the proper price?

Two weeks ago, I called the Heating, Ventilation & A/C dealer… I knew I needed to get some help with my oil furnace, but I wasn’t sure how much it was going to cost; The Heating, Ventilation & A/C serviceman came to the beach house and gave me an quote about how much it would cost if I needed a new oil furnace, and a single for if it was just a repair. I thought the price he gave me was a little over inflated to account for anything he had forgotten, so I let it go. I liked the quote for repairs much better. When the Heating, Ventilation & A/C serviceman arrived 2 weeks later, he told me I was going to need a new oil furnace. I grimaced when I looked at the estimate, and swallowed hard. I wasn’t sure how I was going to pay the price, but I couldn’t go through the Winter separate from a oil furnace. I told him to do the work, and every one of us would take care of the payment when it was done; A month later, the quote became a bill and it was almost 20% higher. I asked if he was sure that was the right price? He told me he double checked the numbers and it was right. I asked him what happened to the over inflated quote he gave me 2 weeks earlier, but he told me that was just an quote and not a quote. If I wanted a quote, I should have asked for a single. He showed me everything that was peculiar between the bill and the estimate, and asked if I needed help paying.
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