For what it is worth, I am in the EXACT same situation. I passed the exam on February 7th and received an email from (ISC)2 saying congratulations, etc. Go here to start the endorsement process. I get right to the end where I sign and then it tells me they have no record of me passing the test. I called the test center and they confirmed my results were sent over to (ISC)2. I've emailed and left voicemails but have yet to talk to a live person when trying to call multiple times multiple days. Everyone must be busy. I hope you get it cleared up as to the cause of the Endorsement troubles.
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