Request to Reset 2FA - Lost Phone Number

I wanna change my phone number cause i cant use it anymore . i dont have authenticator but i have my primary gmail. i need it processed within the day because the item im gonna buy wiill be gone tomorrow. But i have access to my primary email

Please i topped up for my birthday and i cant buy the ingame currency because of the 2fa. Now i’m disappointed and sad, because tomorrow the item is gonna go away. Please razer support help me on this