email License registration number hasn't arrived

[slyrye]

Recently I Megasquirted a friend's car and upgrade the connection to wireless bluetooth we paid via "Google Play" about 10$ but haven't received any confirmation or license registration number in our email.How can we retrieved our registration..?:o

[LT401Vette]

When you purchase through Google play, the licensing is really out of our hands. It is dependent on Google Licensing services.
They don't send a registration email, but in the Play store it will show as paid for or installed.