We need a little more information.
Which worker is missing?
Which maid is just sitting around, and not working?
Did you read the intructions? http://valdea.com/?page=1

So you are missing Nicole Roddy, she is the babysitter.
There is no teenage maid. The blonde maid is Claudia, it is important to make sure you are not calling Jessica Wells. Jessica is the manager and doesn't do much except for pay bills and make sure the maid does her job.
Check 1st to see if you have all the staff members (match them against the list on the instructions page). Look in the DMA folder inside your Downloads folder.
And you could try re-downloading the sets and re-installing them.

She should be paying the bills. Do you have any hacks that could be interferring?

Use Bettie, she is a maid and manager in one. She comes with the VIP set.