There are frequent complaints about balance being deducted directly even when valid Facebook data bundles are active. Users also note a lack of responsiveness from Zong's customer service when filing complaints.
Zong occasionally offers 6GB of free data for first-time installations of the "My Zong App," valid for seven days. The Facebook Data Download Process Download Zong Facebook file tnl
Downloading your history is generally straightforward through the "Your Facebook Information" or "Accounts Center" section in settings. There are frequent complaints about balance being deducted
Export a copy of your Facebook information | Facebook Help Center The Facebook Data Download Process Downloading your history
Some reviewers found that their downloaded data included unexpected information, such as their entire phone contact list, which Facebook had stored from past Messenger app setups.
You can typically choose between HTML for easy offline viewing or JSON for more technical use.