During the weekdays there's more business communication, newsletters etc. from corporate servers that always lags behind in terms of featurfullness and security.
I don't want to install it (because I don't know you, I don't trust you), and I have no idea what is going on. The description is vague, and the website you point to does not seem to have anything related to it.
It's complicated: the default fee is a bit like community consensus and this consensus has some inertia. Blockchain and Coinbase might still force you to overpay. Complain by sending support requests. Google: bitcoin default fee