These people are monsters.
Jolivette is a scam, and a business that has a richly deserved Better Business Bureau grade of F. Do not, under any circumstances, do business with them.
A primary revenue source for them comes from prepaid coupon deals, with the emphasis on prepaid. If you give them your money before they provide a service, you will then begin the fun game of attempting to get them to provide the service you paid them for. First, they say to call an 800 number to make an appointment, but this number will go to an answering machine. You may leave a message, but you will not be called back. You can e-mail them to schedule an appointment, but you will not get a response. Their objective is to run out the clock on your voucher, not to actually clean. Look around other review sites to verify.
But the above may be for the lucky ones. I suppose because they have to maintain some appearance that their business is to clean things, occasionally, on rare occasions, they will actually pick up the phone and take an appointment. This is where Phase 2 begins. Even though you've already prepaid for the service, they demand a credit card number before coming out, just in case you cancel or reschedule (they fine you if you do) or to make it easier to bill you for ordering new services (which for your convenience, they'll sometimes add without asking). They do very poor work, and less than you'd think.
This, despite the need for tort reform, is why class-action suits are actually a good thing. A few disreputable companies will nickel and dime you just enough where it's worth their while, but not enough where it's worth hiring an attorney. The only way to get large companies to stop this practice is to lump a ton of people together and sue them for the damages all at once. But this is a small company, so a little bit can do a lot of harm to them. If they have taken your money and you cannot get relief from the middleman on the voucher (Groupon, LivingSocial, etc.), try and get their address (look around; it changes frequently, so it may just be a PO Box) and take them to small claims court. You just have to go by court, pay a small filing fee, and they will send a process server out to get these people to come in. Sue them for what they took and your costs. If they don't show, you'll get a summary judgement in your favor. You do not need a lawyer. It's very easy.
By the way, as another example of their ethics, please note the reviews below this one. The earliest ones are universally horrible, and spaced out over time with different grammar and much different usernames. Then you hit the 10 or so reviews in a row that are glowing. They're all posted 1/11/12 or 1/12/12, use a lot of exclamation points, don't capitalize i, and have a username format of firstnamelastnamenumber, like jameswebb2241. Those are left by some agent of the company. This is how they work.
Do not do business with this company. If you unfortunately have received this information too late, do not let them get away with it. They will have to answer for their actions in the long run, but you can help make it sooner rather than later.