If you take the corresponding 156-583 exam within 60 days of purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee. Send us a scanned copy of your exam enrollment slip together with your official Score Report PDF within 2 days of taking the exam, and we will process the claim within 7 days. Please note the conditions: sitting the exam within 3 days of purchase does not qualify, the candidate name on the exam record must match the payer's name, and free materials, downloaded-but-never-taken exams, and expired orders are excluded. If you would rather not take a refund, you can exchange your order for two other exam products of equal value at no cost and keep the update service on your original purchase. Delivery itself is instant: the files are available for download right after payment and also reach your mailbox within a minute — contact our customer service team if nothing arrives within 2 hours. There is no limit on how many computers you may install the material on.