Compléter moneyVersion en ligne vocabulary exercise par montse rodriguez 1 instalments delivery refund invoice credit exchange 1 . - an is a document the seller sends to the buyer with information about the product bought 2 . - to a product is when you return a product to the seller and he gives you a different one 3 . - you cash something on when yo pay for something when it is delivered 4 . - when you don't pay something immediately , you pay it on 5 . - payment in is to paying i regular intervals 6 . - if you are not happy with the product you can ask for a and get the money bac k