Hi, I have scheduled Salesforce Manufacturing Accredited Agentforce Professional Cert and which was unsuccessful.

I have scheduled Salesforce Accredited Professional Agentforce Manufacturing Cloud Cert and which was unsuccessful. I would like to retake it and found that this accredited certs are excluded in Salesforce retake offers which are currently running. Checking if anyone have any free voucher to giveaway on 150$ which will help me to retake.