Unless you want to deal with the most frustration you've ever had in your life... NEVER EVER sign up for the ADP Flexible Spending Program. This is a benefit plan often offered to employees by their employers. It provides automatic tax deferred deductions to be taken out of your pay for out-of-pocket medical expenses. ADP is extremely strict about members providing the (* REQUIRED) itemized receipts to substantiative every penny you've spend (of your own money). That's not the problem-the problem is the methods in which your supposed to provide this information. They want to receive this documentation by fax. But mysteriously, they never receive them. I sent them my 'substantiation forms and receipts' over 6 different times. Never received. I'd call after I faxed and they won't confirm whether or not they were received. I had $2, 000. deducted from my pay in 2007 and had $1, 969 worth of medical expenses that they currently denying. They tell me that I actually owe (ADP) reimbursement for $1, 969. because they already paid the claims. Regardless that it's MY money. They blame it on the rules of the IRS. Never taking responsibility of their own administrative incompetency. I've mailed them the required forms and copies of all my faxed transmission confirmations and they still refuse to confirm they received them. I mailed them Certified-Priority Mail. I'm blown away on how this huge company is getting away with ripping off employees for their hard earned wages. And how many corporations use them. Any suggestions would be sincerely appreciated.