You have refunded the money you received from your credit card deposit. You have the option of accessing your account using a different IP address, such as a VPN or proxy. Your suspension may be triggered by a variety of factors. After you recover the account then if you want to exchange Litecoin LTC to Usdt then I recommend you to use xchanger.pk for exchange Litecoin LTC.

https://blog.xchanger.pk/how-to-recover-a-litecoin-ltc-account/