In 2018 I bought the Bido Magazine Theme, but it was a scam. The theme had problems getting installed. I asked Themeforest/Envato for help on Facebook. They told me to contact the author and That the theme should still work. I lost my original facebook account but tried to ask the author for help. You can still see my requests for help on themeforest in the author’s section. Even though the author completely abandoned his wordpress themes, Themeforest/Envato continues to sell them and those of us who were scammed do not respond or give us a solution
You cannot request a refund or support for the item you have purchased 5 years ago.