Php problem

Hi,

I have a problem with a wordpress website/shop:

www.clinicpetfood.nl
(with woocommerce)

Customers can order products...

We have dealers who can order prducts
(works oke, we use 'groups' to make a dealer)

We have a form:
http://www.clinicpetfood.nl/dealer-aanmelding
(only visable when loged in)
were we can add new dealers.
Within this form we give a zip region (dutch zipp)
1000 - 2000
2500 - 3000
etc.

The dealers get a commision of orders from other customers in his zip code earea.

Now we have a page where a dealer can login,
and see all the orders from other customers in his zipp earea

All the forms are there, but the last page is not showing (all) of the orders...
(the developer who made these pages is ill at the moment)

Can you help?
Lucas