The VTB plugin creates customizable Fb buttons and you must use them responsibly so that your Fb app doesn't get restricted. When the user clicks your VTB button the Fb permission box asks them to agree that they want to pass you their email address and and gives them the option to share your page on their wall. This is all done using Facebook's approved public API.
VTB gives you several share modal styles to chose from so you are not forcing your visitors to share on facebook in order to access their download item/s. The modal styles tutorial video explains how these different styles work.
Remember that you are using YOUR Facebook account to create your app not ours. We cant be responsible for the way you use the plugin. You should always be transparent with your visitors and tell them that you are adding them to your email list. Always give your subscribers the oprotunity to OPT OUT of your lists and comply with the CAN-SPAM act and the GDPR. This is YOUR responsibility.
FACEBOOK DOES NOT LIKE IT WHEN YOU INCENTIVIZE MEMBERS FOR SHARING HOWEVER THEY ARE FINE WITH VISITORS LOGGING IN TO YOUR SITE TO ACCESS THEIR FREE MATERIAL. We recommend that your VTB button text says "Login With Facebook To Access" By using this type of wording it will not appear as if you are trying to "pay for a share". Please use your app responsibly. See these examples of DO's and DON'Ts.
If you are not in agreement with using the plugin responsibly then please contact us for a refund. We reserve the right to revoke your plugin license key for abuse and deny a refund after 30 days.