Unstable, unreliable , unusable

In August I signed up for Connected Space at a new apartment, for the first 4 days of August, the service was down and unusable. After multiple interactions with their whatsapp support, claiming various reasons for the connection being down I asked to cancel my contract as I needed to find an alternative reliable provider so that I can actually work from home. For 4 days from activation the service was unusable, at this point I had accepted that I would not be refunded for August, but decided to cut my losses even though the service was not being provided that I had signed up. Connected space now wish to still charge me for an additional calendar month of September. It's shameful that they try hold me to some T&C but don't hold themselves accountable for providing a service they agreed to