I purchased a theme from themeforest and an unable to install it

I have purchased the theme Vertical Showcase – Borgholm from themeforest but I am unable to install the license on my domain as it keeps getting rejected with the error message - The code was already used to register another domain.

I haven’t registered it with any other domain as of now. Is there a way to reset the license?

I have raised a request on the author’s page - Request no. 184624

Hope the author will reply you as quickly they can and will assist you. Thanks