ILC, if you feel that you are being treated unfairly, you should go over to the person and charge and tell them. In addition as an adult you don’t rely on what they should do, or “figure” on what they will do. YOU ask. When they called you to come back it was your responsibility to ask “what are you offering me to come back?” and then you would have the opportunity to say “that is not acceptable and not worth my while. I am not 12 years old any more, and I deserve to get paid like an adult with the experience that I have.”
Did they call you back because of your experience and your ability or did they call you back because they felt they can take advantage of you?