1. You are a business owner, not an employee; do not allow a client to treat you as such. 2. Re-address the issue of a rate increase by listing in detail what you were doing for him at your initial rate, then list what you're doing for him now, based on your specialty skills, etc. 3. Your rate increase (NOT pay raise) is based on the value of the service and results you provide. 4. If you don't get the rate increase, terminate your business relationship with him; this type of situation leaves little room for improvement on the client's part in this regard. 5. Make sure you have a contract outlining the details and scope of the work you're expected to do and the rate at which you should be paid, including your scheduled rate increases.