I want to implement the features like 

first i send two message one is messager list and send is my own mssage. now i want features like if user is not click the “Get Updates” means user is not subscribe the messager list so if user send one msg then i want to send again this messager list. 

I try but thing is what first time it working next time i got only one message it is my own mesage. so please help me what i need to do for making features which explain.