You can buy PRO version of WP File Manager from http://filemanager.webdesi9.com/product/file-manager.
No need to worry. Just email us at email@example.com from the email that you used while purchasing the plugin. We will send you the Order ID and License Key within an hour of the Purchase.
Don’t worry, If the payment has been made then you will receive the details in your email in case you don’t receive the details. Please email us at firstname.lastname@example.org from the email that you used while making the purchase. We will Send you all the details in your email.
First you need to deactivate and delete the free version if you are using, Then Install the Pro Files sent to you in your email. Go to Plugins:- Add New and click on Upload button, after browsing the files sent to you. Just click on Install and it will install the plugin. Then you can activate it from the Same page or by going to the Plugins Page in the WordPress Dashboard. Once you have done that Our Plugin will ask for the Order ID and Purchase Key. Just add that from the email and activate it.