Review on Bitcoin Cold Storage Securely Cryptocurrencies by Kaylon Mackey

Did a test, deposited $20 in bitcoin. Then I removed the back sticker and cleaned it with WD-40. I tried to send to my Coinbase wallet said it was an invalid QR code. I am trying again with my Ballet wallet which accepted the import. But paid $8 per transaction and left $12. Truth? WTF Now there was an extra $2 to send to the Coinbase wallet. Lost half my money. So is there a 40% charge for issuing a coin from a cold store coin? If so, then it's BS. Giving 1 star only for nice looks