Do you have any idea how many times my signal levels have been checked. If my signal levels were bad, wouldn't this be good for all day connectivity? not only after say 4 o'clock? I have played your game of checking signal levels and resetting the modem and changing the network cable, and outside splitter and at one point before also having a tech come out just to tell me what, your signals are good.. I have state of the art equipment and remember my speed are from the modem to my laptop, (and yes my laptop has a gigabyte ethernet port built in) bypassing my network completely.
Lets be honest here! Cox infrastructure was not designed for a pandemic. Other clients might not know how your network works but I do. The more you loaded the slower it gets.
Just credit Gig blast customers what they really should be paying a month now, at least until you either improve your infrastructure, lay fiber to the side walk or find a way to improve the speeds clients are paying cox for.