I can't receive the short message of Fetion on the computer.

This situation should be that your friend is using a smart phone. At present, some smart phones have the function of filtering mobile phone numbers. For example, if you send a fetion message by computer, the other party should receive the phone number of 12520+, and the other party's phone filter removes the previous 12520 except the phone number, so if he replies, it will return to your mobile phone in the form of a short message. In this case, you can ask your friend to re-edit the message and send it to 12520+ your mobile phone number when replying, or ask your friend to check whether the mobile phone has this function, and you can choose to turn it off. If you don't understand, you can continue to ask