No broadband for 1 week

I've had no broadband since Sunday 27 April and the eta for this to be fixed is Saturday 3rd May.

How is this acceptable? Spoke on webchat yesterday where I was persistently told "not to worry" and offered £50 credit on my account. It is impossible for me to work with no broadband so I am worried. 1 or 2 days without broadband fair enough but a whole week is totally unacceptable. 

Fault reference F0117 976 80