Smush Pro won't upload to WP themed web site

HELP! I bought smush Pro after installing Smush onto my WP website (Using Maya Theme)
I have latest WP and paid to update to PRO. Downloaded it and then tried to upload zip file but it doesn't....it just sits there without uploading.... I've tried over and over to make it go but it won't. Please help or tell me how to get my money refunded. :slight_frown: