We are working on a FAQ. You can not access your connection info again because it is never stored, so always send it via email to yourself.
Any idea why the provided wireguard.conf (see above) did not provide an internet connection? I tried on two different devices.
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There is an issue with the USA server. It's not working 100%. It is disable for new VPNs until we fixed it. You can give me a LN invoice and I refund you.