So you told her the fees will remain the same. Stand your ground. She was very lucky to be paying the rate she was for so long, now it is time for a reality check. It is also unfair to your other clients to have a client receive a discount. Anytime I have been asked for a reduction, I cite the unfairness it would be to the other parents. That always stops the conversation.

For a year we had a special deal with our cable provider. The year just ended and we are at regular rates. It hurts, but that's the reality of a limited time offer, which you can say you gave her.