A mystery

The other day I received a letter in the mail. Inside was a page from a magazine with a little post it note. On the note it said," I thought you would want to try this. It really works"
then its got a little initial.
I have no idea who sent this to me, as it does not have a return address.
If anyone can shed some light on this I would appreciate it.
To whoever sent it, thank you I will read the article and maybe try the  tea.
Maybe my angels sent it to me.
very mysterious indeed.
see ya