hi there, after a long break about two or three years ago, manychat features were free then,

Manychat Fb messenger bot helped me a lot at that time. So again i came back to use its features but new plans that im not aware about it. 
 

i have only one question. What does contact limit means? 
 

suppose i have 10k fb messages, and the limit of contacts in manychat is 500 only. Does it mean i can only broadcast automessage to only 500? 
 

pls explaim me and sorry my english is not good