Only age gets locked at ITA. Everything else should be valid / not expired by AOR. So your IELTS results should be fine.
https://www.canada.ca/en/immigration-refugees-citizenship/services/immigrate-canada/express-entry/documents.html there are instructions for Venezuelan passports.
Follow these steps, if the printed expiry date has passed, and you’re creating a profile or submitting an application under Express Entry:
- Add 5 years to the printed expiry date shown on your passport and enter it in the expiry date field when creating your profile or submitting your online application.
- Include a letter of explanation with your application stating: “I am a Venezuelan national with a Venezuelan passport, which has been extended for five years.”
Warning: If your passport is still expired after adding 5 years to the printed expiry date, you cannot use it to create a profile or submit an application through Express Entry.
#3. I don’t think there is though - you can try the IRCC Twitter account (but these are not IRCC agents). Express entry is meant to be DIY but if your case is complicated better consult an immigration lawyer.