Hello Philip Coatzee, 

Welcome to the Community page, 

In order to help you we need someone information off you. 

Is this the first time you are sending statements?

Are you trying to do them in bulk? 

If not the first time sending statements is this the first time you have ad this issue? 

When you try and send the statements do you get any error messages showing up to say why it is not sending for if so can you send us a screenshot of it please so we can look into it more for you.