Hi, I got about 3k amazon gift codes, but most of gift codes are from blackhat method. I tried to use gift codes to redeem on some accounts, then ship item from amazon. The first time, all items shipped quickly. But the second time, they delay some days. Then I tried to creat new amazon account to ship items through gift codes, but no luck. I tried to research some tips on BHW and other forums, tried some tips I found, but still no luck. So any one can give me some tips to ship on amazon using gift codes? Thanks you so much!