Hello! In my site i use a multilevel accordions. I bought license but at my WP i see "Buy PREMIUM"
my license key #27505
Welcome to our forum.
I am not sure which version are you using?
you will need to reinstall the plugin, first delete older version and then install the pro version that downloaded from our website. please check plugin list page to see the plugin version you are using. and if possible please send me a screenshot.