The fact that you received an auto response the next day means that the CSD did complete the required proactive customer service form, they would have offered you the compensation level from a grid which you say you were not happy with. The form asks if this offer is acceptable to the customer or if Customer Relations have to contact the customer to offer resolution which is what has happened in your case.
You will be contacted by CR but this depends on how busy they are, baring in mind the IT issues last week it may take a little longer but please be assured you will be contacted.
Without knowing the situation I cannot say if you were offered the correct level of compensation, my first question is were there is other seats available in the cabin?