Many times when someone is in a fix to the extent of calling on you for financial assistance he/she May not be sure that you will bail him/her in which case he/she May approach many more people to increase the chances of getting assisted.
If you decide to assist this person using mobile money, it is important that your identity is clear. If the person you assisted does not say thank you, the reason is that he/she tried a number of options and is now not sure who bailed him, and it becomes difficult for him/her to start ringing all those he had expected assistance from to find out who sent the money. So, if you send money to a person and he does not say thank you, what should get to your mind is that he/she is not sure who sent the money, so what you have to do is get open tell him/her that you sent the money and you will definitely get a thank you.
Looks simple but it is an experience in life.