Amazon 花$31拿$36 [Prime only]

現在prime member花$31可以買到$36 amazon credit

步驟

1. 買Anytime amazon gift card，花費$0.99 (Prime member no shipping fee)
2. 收到後三張卡每張卡充值$10，會多送$2，花$30可以拿到$36，充值連結

數量有限要買要快