First of all, thank you for using our product.
And in order to answer your questions on the Moonlight-Elecard SDK upgrade and possible payment options, please feel free to contact us directly at firstname.lastname@example.org
Also, we would very much appreciate if you could clarify about your company name, and the project you need our SDK to be used for.
So, right after we receive from you all the information, we will be glad to send you the best suitable upgrade offer.
With Best Regards,