Your Showplustv wallet holds store credit in the currency selected at registration. It is not a crypto wallet and does not support transfers between users.
A payment invoice shows the exact amount and network to use. Showplustv offers USDT on Tron (TRC20) only. Check the network and address before sending.
Your balance is credited after payment confirmation and verification. A sent payment is not yet a confirmed payment.
An expired invoice, incomplete amount or payment on another network needs review. Contact support with your invoice reference, never a private key.