I don't know why coinbase works so slowly. I've received a notification my coins will be held up for 72 hours. It's unacceptable when you trade! I was swapping my coins via simpleswap and contacted them for this issue. Miko assured me that when they will receive my crypto, he will refund or complete my swap at the same or a better rate. I've been using these guides quite a long. Never has issues, except this one. Actaully, it's not their fault. I just noticed that never wrote a review for them!