Actually just looked at the website again and it is quite clear:
"Upon successful payment you will be presented with a link to come back to our site. Please follow this link to receive your receipt file. This file can then be placed in the same directory as all of the apps, and it will unlock No Spin upon your very next launch."
.......which is exactly what happened for me. No email mentioned.
After paying, I clicked back to Mosaic, and there was a button to download receipt. So I did and followed the instructions. All unlocked and working within two minutes of payment.
I agree there was some reference to receiving the receipt file by e mail...confusing.
No Spin
"Upon successful payment you will be presented with a link to come back to our site. Please follow this link to receive your receipt file. This file can then be placed in the same directory as all of the apps, and it will unlock No Spin upon your very next launch."
.......which is exactly what happened for me. No email mentioned.
No Spin
I agree there was some reference to receiving the receipt file by e mail...confusing.
TNEFs Enough
TNEFs Enough