duplicate orders in authorize AIM

[andes]

Today i found that I have a dupliecate order from the same client in authorize.net 4 times ( two with id and other 2 with other xxxx514 and xxx515 ) but no order in zen, the orders are separated +- 20 minutes between them, and another order with the same id but from another customer appear in authorize.net and zen . finally when i enter the client account the product is still in his basket, any idea?

Thanks