Thanks for mentioning me @offgridlife 👍
First of all you need to activate the 2FA security (the 3 dots ••• in your profile then Security Settings). For the time being, this feature seems to be available only on the web version and not yet on the Android and IOS versions.
After that, you'll see a withdrawal button below your RPK balance in your wallet (or not, as I'm not sure it's been deployed for everyone yet), as shown in the video in this tweet 👉
You can find the list of exchanges for RPKs (Ethereum ERC20 / TON Open Network) on CoinMarketCap 👉 https://coinmarketcap.com/currencies/republik/#Markets
For more information on Republik, I invite you to read their Whitepaper 👉 https://republik.gg/whitepaper/rewards-system/
Thank you very much for the information. It was quite helpful :)