Invoices being generated for similar period after being paid?

[Ijan]

We are experiencing an issue with credit card invoices being generated after being paid, the time periods are nearly the same only a couple of days apart in most cases. An example is below.

 

A customers due date is on the 1st of each month, Jan, Feb and March were invoiced correctly but the due date for the invoice for April was the 31st March for the period (03/31/2008 - 04/30/2008), this invoice was paid on the 08th April and also on the 8th another invoice was generated but for the period (04/01/2008 - 04/30/2008) which is the correct billing sequence.

 

The invoice for February is unpaid and we believe this may have some relation to the issue. If anyone else has experience this or instances similar to this please let us know what you have found out!

 

Thanks!

Ijan