Skullcandy — Product warranty replacement still in pending and no info provided

Order I'd[protected] orders through Amazon and send returned to them for warranty replacement but neither confirm they got product back neither they have any contact no to confirm now they are asking pod for shipping I had said they delivered to your security guard he was not Letting delivery guys enter there is no contact no to contact them for that so how can I know they got it or not it's all skullcandy fault