Zoho Sign up forms on Wordpress website not working smoothly

Zoho Sign up forms on Wordpress website not working smoothly

We have set up the forms on the website and linked them to respective email journeys.  But when wesubmit the form the email generated/sent to user is not consistent. 

Sometimes the journey email is sent, sometimes a email verification message is sent , it asks for resubscribe and sometimes nothing is sent. 

A return user is not able to get the E-book/Resources sent to them. 

We are using Marketing Automation to set up these forms and journeys. 

All our website forms are in a mess now.