Not only do you not own a dictionary, but I think you are talking about Fidelity Investments, not FIS. FIS's primary business is third party check/credit card processing, and it is unafiliated with Fidelity Investments.
If you want to complain about Fidelity Investments in broken English, you'll have to do it on their Web site, since they are a privately held company, and not a publically traded corporation.
I believe it has to do with being classified as an exempt (salary) employee instead of an non-exempt (hourly) employee. The plaintiff claims she worked overtime & was not paid for it since she was classified as exempt.
An employee must meet certain criteria outlined by the DOL before a company can classify that employee exempt & not have to pay them overtime. So, looks like this employee was classified incorrectly & is suing for overtime pay during the specified time period.