Dunning Letters Confusion

Hi,

I have a customer (a completely seperate one to my other Dunning thread!) who wants to start using Dunning Letters.

They have the following Dunning Terms:

Letter 1 - 30 Days

Letter 2 - 60 Days

Letter 3 - 90 Days

...and it is set to "One Letter per Dunning Level".

.We have taken one BP with very aged transactions during our testing. The first letter printed OK. It was my belief that you cannot print 2 levels of Dunning Letters on the same day, so we waited until the next day to try Dunning Letter 2.

Dunning Letter 2 is not being produced by the Dunning Wizard despite the transactions being well overdue. I have tried changing the Letter 2 days to 31 as a test but the Dunning Wizard still ignores this customer.

What I am doing wrong?

Thanks

Greig