Can't find registration info

[ttman21]

I purchased MakeMKV some time ago, but haven't used it in a while. When I tried to run it today, a message pops up saying the version is too old, download the new one or enter my registration key. I can't find my registration key. Please advise.

[Woodstock]

Look for an email from avangate.com; that would be where the original registration key would have come from.

Failing that, send your information to support@makemkv.com and the author will look it up.

[Blakbear]

so i found the emails, with the info, but none of which contain the registration key, there is a link but nothing comes of it.
Thank you for the help, i will email the support with the info and get my key.