sellify-ucd-auto-add-free-items.js

window.addEventListener("Sellify::UCD::TieredFreeItemsRendered", function(){
setTimeout(function(){
$( '#sellify-ucd-tiered-free-items-container .ucd-unlocked-offer .upsell-submit' ).each( function(){
    var cartIds = sellify.ucd.original_cart.items.map( function( item ){
        return item.variant_id;
    } );
    var id = $( this ).closest( 'form' ).find( '[name="id"]' ).val()
    if( ! cartIds.includes( id ) )
    {
      $(this).click()
    }
} )}, 2000)
});