Thank you for reaching out about your contacts! I’m sorry to hear they are not being added into your account as easily as they should. We would however need more clarifying details on what exactly they are experiencing. Were you able to connect the integration but not successfully add contacts? Are you receiving any error messages? Are your contacts not seeing the ability to opt-in to Constant Contact mailings while registering? Having any further information on this will help to make sure we are sharing the correct information with you.