Ok this might help:
Here is the Transaction screen on my Coinbase wallet. Note: I've only done 1 transaction so this is exactly the same transaction. -
https://filebin.net/l2mt255xiht8badh/IMG-5059.jpg?t=zvkjieqpNow when I press the the one with the C in the blue dot, I come to this page. It says Transfer from at the top and the miner fees look fine. Howevr, when I click on view on BTC.com at the bottom it takes me to a 404 page. -
https://filebin.net/l2mt255xiht8badh/IMG-5060.jpg?t=zvkjieqpWhen I click on the one at the top with the payment ID it takes me to this page. At the top it says Payment from and then the address of my coinbase exchange account. Follow by the huge miner fee. When I clik on view on BTC.com it does work and takes me to a page -https://filebin.net/l2mt255xiht8badh/IMG-5061.jpg?t=zvkjieqp
However, I'm fairly reassured as when I takeaway my original amount of bitcoin from the Exchange compared to the amount on my wallet, I get the small miner fee of 0.00006907. I just wonder why on earth I'm shown the big miner fee? Odd