If you wish to rescind the Reaffirmation Agreement you must send a written Notice that you are rescinding to the lender (and the lender's attorney if there was one). This Notice MUST be sent, either,
1. Before the entry of your Discharge
or
2. Within 60 days after the Agreement is filed with the Court
WHICH EVER IS LATER.
If you miss the deadline to rescind you are bound by the agreement. I recommend you send the Notice via Certified AND regular mail, fax and e mail. I also recommend that you file a copy with the Court.