I am not able to receive SMS when someone sends it on my keyword. Why is that so?

When someone sends an SMS on your keyword and you aren't receiving it, there can be three main reasons behind this situation:

1. In case, your inbox balance is zero, you'll not receive messages through the keyword.
2. If your inbox balance is not zero and still you are not receiving the message, the reason behind this is that the expiry date of your inbox has passed and you need to get it extended by contacting our support team.
3. Other than the above reasons, one more reason is if the format of the keyword is not correct, you might not receive messages in this case. 

You can contact our support team for the same.