Hey dear, where are you trying to put? Once you login, you cant put referall code after that, during the sign up process only you can use referall code

<span style="color:#3B5998;"><b> @616da14c8054f30013c5bccd </b></span>

@khushboo Chouhan

<span style="color:#3B5998;"><b> @616da14c8054f30013c5bccd </b></span>