Plug in is displaying odd button

Hello,

I installed a plugin for my woocommerce called, “Offers for WooCommerce” and the plugin adds a button to my detailed products page. Unfortunetly the button looks different from the one that the highend theme has. Is there something i can do in order to make the button show up exactly like my woocommerce “Add to cart” button?

Any assistance that can be provided would be greatly appreciated.

Sincerely,
Daniel Riera