the date of Distributor's invoice for the related transactions. 7.6 Any credit request will be based on the price shown on the then current Distributor Price List, or the actual net price paid by Distributor for the Product, whichever is lower. 7.7 If Tripath notifies Distributor of any discrepancy in a credit request, Distributor has one month to resolve the discrepancy and pay the amount of the discrepancy. 7.8 No purchase orders for which a Sales Order Acknowledgment has been issued may be canceled or rescheduled within one month of the scheduled shipment date without Tripath's approval. 8. Special Pricing and Other Allowances 8.1 The provisions of this Section 8 will be applicable only to transactions on DPA (distributor price authorization) basis in which Distributor first obtains a DPA confirmation from Tripath. 8.2 Requests for special pricing and/or allowances will be submitted by Distributor to the appropriate Tripath sales office, and must be first approved in writing by that office. 8.3 Quotes for special pricing are good for one month, and must be backed by a Tripath quote number. Distributor will supply supporting documentation showing Products listed by part number, date of transaction, end customer name and address, and the appropriate special pricing details, not later than two weeks after shipment to the associated customer. 8.4 If Tripath has granted Distributor special pricing on a sale in which Distributor's customer has later returned the Product to Distributor, Distributor will reimburse Tripath for the amount of the DPA allowance within one month after such return. 8.5 Any debit memo submitted by Distributor for a DPA allowance will be based on the price shown on the then current Distributor Price List, or the actual net price paid by Distributor for the Product, whichever is lower. 9. Returns 9.1 Distributor may return Products