Oman PlayS Wallet Topup USD 21
STEP 1 Sign into your account for PlayStation™Network (PSN™) or create an account at PlayStation.com
STEP 2 Find the 12-digit code on your gift card.
STEP 3 Go to 'Redeem Code' on PlayStation™Store on your console or at PlayStation.com and enter the code.
STEP 4 To purchase a PlayStation®Plus membership using the funds from this code select the membership plan of your choice, and complete the purchase.