Change TOTP authenticator APP

Can someone help me about how to change the TOTP authenticator app? My old phone is broken and is nearly dying. I just bought a new phone and I want to generate my codes from a TOTP authenticator app in my new phone. Searching in various razer sites(razerid, razer gold, razer online store, etc.) doesn't seem to have any option for linking a new TOTP authenticator app. I was using codes through SMS whenever my old phone does not start up. I actually already contacted support. I have case number. But the support did not help me in my problem. It even jeopardized my situation. He actually deleted the phone number associated with my account so now I cannot generate codes through SMS. Luckily, my old phone turned on earlier and I managed to put my phone number back in my account. I am not sure how the support did not understand what I need help with. Any help would be appreciated.