There are multiple versions of TradingView.
1) AMP’s Free Version (Basic Charting and Trading): https://amp.tradingview.com/
2) Paid Versions – PRO, PRO Plus, Premium (please click the link to compare available features per version) - https://www.tradingview.com/gopro/
Your AMP live trading credentials can be used on all versions. By using your AMP live credentials, you will not be prompt to pay for the exchange fees a second time. Since you are already paying the monthly exchange fees via your AMP account, TradingView now has the ability to check the exchanges enabled on your live AMP credentials.
Your AMP Live Credentials are enabled automatically for live trading on all versions of TradingView.