Hi Nikola  I have again returned to your system and in all honesty I prefer your plugin's layout and interface to most others I have looked at. I feel I can work with your basic plugin even if I cannot get your extension working and from what I have seen I personally feel the basic plugin is worth the money so will look at calling off the dispute on Paypal Current issues:

1. I still haven't received any password reset or password and username so I can't reply to your answers. Please can you try directly emailing from another email account. 
2. I have re-installed both plugins and think I have correctly configured it with the applications from Paypal. I now have a Paypal checkout button that appears when the form is filled in, but when I click it nothing happens and I am not sure why? I have it in the production mode. www.meetsantaclaus.online