When I send a signature request, I never know when it will arrive. Some arrive within a moment but some arrive 15 hours or more. Sometimes, I receive an email saying that the request has been sent but, that doesn't happen either.
What is causing this erratic problem?
Is there an outage in the service at times?
I'm sorry for the inconvenience that has caused.
I would suggest you to please check your server connection which could be the cause of this delay.
Let me know.