You can withdraw your money from Sentz as Naira using the BitGet exchange
Choose the "Withdraw" option on the home screen
Choose "As other Stablecoins" on the listed withdrawal options
Enter the amount you would like to withdraw
Save your USDC or USDT deposit address. You can find this in BitGet by doing the following:
Choose USDT or USDC: Polygon Network is recommended
Copy the deposit address
In Sentz, paste the deposit address so you can save BitGet as a withdrawal method
Choose "Select New Wallet"
Choose the currency (USDC or USDT) and the network that is shared by both platforms (Polygon, Tron)
Hit "Continue"
Once you confirm, the funds will be sent to your ByBit wallet.
In BitGet, choose "More" on the Home Screen
Choose "P2P". Go to "Sell" and choose your preferred merchant.
Confirm your order and you'll receive Naira in your bank account from the ByBit merchant.