How to know somebody has deleted or blocked your ID

How to know somebody deleted your contact in the listof contact of him If you want your id to be seen it is still in his/her friend's ...

How to know somebody deleted your contact in the listof contact of him If you want your id to be seen it is still in his/her friend's list contacts does the following:
Test his/her nick with the option “buzz"... To appear "doyou want a buzz ?” This means that your contact consists in his/her list, but to appear “ sorry you are not able to buzz” this means that he turned off or it blocked your contact, but anyway yourcontact doesn't consist in his/her list