Poloniex is a cryptocurrency exchange that allows users to buy or sell digital assets such as Bitcoin, Ethereum, TRON, and other altcoins.The exchange has low trading fees and supports over 350 cryptocurrencies.Poloniex has a General Troubleshooting page on their support website that provides users with possible solutions to common issues such as email whitelisting, login problems including 2FA troubleshooting and password reset, temporary bans, and captcha issues.However, some customer reviews on Trustpilot have claimed that Poloniex denied them access to their accounts and that they were unable to retrieve their funds Poloniex is a cryptocurrency exchange that allows users to buy or sell digital assets such as Bitcoin, Ethereum, TRON, and other altcoins.The exchange has low trading fees and supports over 350 cryptocurrencies.Poloniex has a General Troubleshooting page on their support website that provides users with possible solutions to common issues such as email whitelisting, login problems including 2FA troubleshooting and password reset, temporary bans, and captcha issues.However, some customer reviews on Trustpilot have claimed that Poloniex denied them access to their accounts and that they were unable to retrieve their funds