I understand your predicament and it's unfortunate that you're facing this issue. Here are some steps you can take to resolve it:
1. Contact your previous employer: Reach out to your previous HR department and inform them about the missing PF contribution and the absence of the exit date in your passbook. They are legally obliged to correct these errors.
2. Lodge a grievance: If your previous employer is unresponsive or unwilling to rectify the issue, you can lodge a grievance with the EPFO. You can do this online through the EPFO grievance management system
https://epfigms.gov.in/.
3. Contact your current employer: Inform your current employer about the issue. They might be able to assist you in the transfer process or provide some advice based on their experience.
4. Consult a legal advisor: If all else fails, consider seeking legal advice. They can guide you on the best course of action based on labor laws.
Remember, it's important to keep all your communications documented. This might be helpful if you need to escalate the issue. I hope this helps and you're able to resolve the issue soon.