No PPC restrictions. Commission is not paid on trade-ins, but is paid on subsequent spend of trade-in credit.
Commission is paid on order total excluding VAT and postage, and AFTER any discounts have been applied.
Commission NOT paid when a discount code is used, unless the code has been provided exclusively for affiliate use.
Any new customer increased commissions offered will NOT be paid if a gift card is used, but WILL be paid in conjunction with any discount offers.