Do you have many inputs to add up to the 0.1BTC you're trying to send? I just setup a transaction of 0.1BTC to see what the txn fee would be, and I got about $4 fee with 9 inputs. In case you're wondering: Mycelium set for Economic send which now is 54 satoshis/byte
As far as I know (not sure how to count inputs?) I did the transaction the exact same way I have done in the past.
I used the SEND tab on Electrum v3.3.4 and entered my coinbase.com BTC address set the BTC to 0.1 and processed it.
I use Electrum v3.3.4 on my laptop and I have no idea what 'kind' of wallet that coinbase.com uses. Do you have any recommendations?
Can I CANCEL the transaction? It was initiated less than an hour ago.
Thanks in advance!