[Install of Trial version failed]

I guess further explanation is in order.

1. I attempted to install the app (Infinity Photo Trial) about one hour after registering on the site with my email. Obviously a 10 day trial had not expired.

2. I have never installed Infinity Photo (or any other Serif app) on the Win 10 PC; the PC is fairly new and only I have access to it.

3. I don't have access to another PC on which to download a trial version.

4. The fact that the install window froze and moved almost completely off the desktop indicates that the install software failed or some part of Windows 10 interfered with the install.

[Install of Trial version failed]

Today I signed up for a Trial version of Affinity Photo for Windows 10. During the install the install window popped almost completely off of the desktop and made it impossible to continue. I had to stop the operation using Task Manager. When I re-started the install it removed the partial install and completed the installation. However, when I tried to open the program it said, "Your trial has ended. We hope you enjoyed using Affinity Photo."  Obviously the registry or something was clobbered. How can I contact Affinity Photo Help to resolve this?  Thanks.