I bought the sonik theme, but importend features are not working for me.

I would like to buy a different theme instead, becuase i’m already used to elemntor, not to wp_bakery.

You’d need to ask the author but be aware that a change of mind is not guaranteed to get a refund https://help.market.envato.com/hc/en-us/articles/202821460-Can-I-Get-A-Refund-