So I ordered the Mighty vac back in November. Read a thread about sizing, while I was waiting for it. I realized I should of ordered a different size, so I paid a discounted fee for a new one. They took the money from my checking account, but I never received the new cylinder. As you can imagine I'm quite disappointed. It's now been probably close to a month, and haven't been able to use what I paid for. Very frustrated. I've spent a lot of money with this company, but now I'm starting to wonder why. Any help would be greatly appreciated.