Never in the history of ever have a support page requested you to send an e-mail, instead of the built in PM system.
Do not send them anything, it’s a scam.​​​​​

@Infinity_Core is right - never respond to any person via PM regarding gold, and don’t send any email onto @gmail.com / @outlook.com domain and so on…

The only possibility to contact with Official Razer Gold Support is through website: http://gold.razer.com/ticket-inbox/submit