This address of
Fernando is from his official website, so it is 100% true. The
Hacienda de Totoapán
128, Prado Coapa
14350 México D.F.
If you rather send
e-mail messages to Fer, here is his e-mail. I hope he'll answer you soon.
Good luck! Please note: I'm not
sure that this is the real e-mail address of Fernando Colunga. He answered
me twice when I wrote to him, but I'm not sure that it was really Fernando