I need help with showing the region with two digits.

<?php echo osc_item_country_code() ; ?> - Displays two digit country code.

Is there a way to display the region with two digits? 

If I would be user, I would rather wait for 10sec so I can review my listing, then waiting few minutes for cron to pick it up.
Pretty sure that fancy loading message with what is going on would be more helpful.
For ad importer plugin, try to optimize images and do not send larger images then needed.

You are probably right but you guys need to find a solution for this because I have other websites and I upload 10-20 images, even bigger in size, they make a lot more thumbnails and still load faster on exactly the same hosting.

Anti spam:
https://osclasspoint.com/osclass-plugins/protection-and-spam/anti-spam-and-bot-protection-osclass-plugin-i51

I have purchased this plugin , but don’t stop spam user to register.

You should have tech person that can help you with such issues or look for developer.
Unfortunately, for open-source there is never dedicated support that would solve your specific issues.

No, its feed for robots.