You can sell up to 5 vehicles in one day. If you can’t sell the tank and get the following system message when trying, then you have already sold 5 tanks and exhausted the limit for the current day.
Selling a Tank from the Garage::
- Select the tank that you want to sell, and tap Upgrades (the tank image).
- In the window that opens, tap Sell.
- A tank sale page with the selling price and other details will appear. To sell the vehicle, tap Sell. The tank will be sold and the corresponding amount of credits will go to your account.
Be careful: you won't be able to cancel the transaction once you have tapped Sell.