They do not want to scam you, it is an estimation of the fee you might pay in order to confirm your transaction promptly or expeditious. By using their API you could avoid paying the forced fee, by entering a manual amount in case all your inputs are already confirmed,
The problem is that my balance is the estimated fees !!!
I can't even send 0.00000 BTC !
And i think you can't manually change the miners fee.. if ever try to contact the support instead and try to help you about editing the miners fee just to send your bitcoin to other wallet.
If they allow to change your miners fee make sure you pay above 100 sat/ byte so that it won't delay too much..
Check here for estimate time and fees..
https://bitcoinfees.earn.com/
