I write my item purchase code and get message:
Your purchase code appears to be invalid. Please take special care to enter it correctly without accidentally including spaces or other additional characters. Please note, you can’t activate LayerSlider with your theme’s purchase code. This also can be a temporary issue in our services. In that case please try it again in a few hours.
We have purchased LayerSlider with the extended license which allows us to resell it with our theme and you can use the version that you get with our theme since it works in full and you can use all of its features, but you are not able to update it with the purchase code you got since its for the theme, and we own the purchase ID for the LayerSLider. All further slider updates will be implemented with the theme updates, and in case you would like to update the the plugin on your own without wait for the theme updates and get the direct support from their team you would need to purchase single license for layerSlider.