When you fund your account, payment systems may require verification by sending you an SMS confirmation code. For example, this commonly occurs when depositing with a bank card.
If you do not receive an SMS code:
Make sure that airplane mode is turned off on your device.
Contact your bank (or payment system) to check for any temporary restrictions or issues. In many cases, contacting the payment system's support team directly will help resolve the issue quickly.
If you are using a bank card, make sure that the 3D Secure function is enabled. This security setting is responsible for sending SMS codes. Without it, it may not be possible to complete the transaction. In most cases, 3D Secure is enabled by default, but if you encounter problems, check its status with your bank.