Steps to download voucher:
1. Long press on Voucher below
2. Click “Download Image” or “Save to Phone”
3. Check the voucher in Gallery or Photos on your device
https://www.facebook.com/help/1625371524453896/
1. Tap on the three lines on the upper right corner of Facebook.
2. Scroll down and select Settings & Privacy.
3. Select Settings.
4. Scroll to Privacy section and select Public posts.
5. Under Who Can Follow Me, ensure that Public is selected.