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giff封号了差不多一周，想着里面还有余额就想试一下，结果退款成功了，下面是工单的模板： 
Dear giffgaff Support Team, 
I am writing to formally request a refund of the remaining Airtime Credit (real cash balance) on my recently closed account. 
My account details: 


Username: [你的 giffgaff 用户名] 


Phone Number: [你的 giffgaff 手机号] 


Original Payment Method: [你的付款方式，例如 Visa card ending in 1234 / PayPal] 


I understand that my accou...