buddypress xprofile plugin

Dear,

i would like to ask help. I installed BP xProfile Location. It ask me to get an api map Key from google. When i received my key i filled it in the form : settings –>buddypress –> options –> google map api key. But when i click on the registration form of my website it gives an default. I contacted google support and followed all the right staps.
But nothing changed. They said it could be a wordpress plugin problem. Does anyone knows what the do?

Thank you