Poor service which w...

I opened an account with Metrofibre in the third week of a month I was told I would be paying for the one week remaining in the month I was charged for 3 weeks I complained and was told they would sort Then a couple months later they had a breakage of a supply cable and the network was down for almost 3 weeks They charged for a full month I complained and once again was told it will be sorted It never was They then cut my feed When I tried to explain I was told to pay my account first I cancelled my account with them and was told amount owing was zero About 6 months later they started sending me accounts
I have tried chatting with them but all I receive are either statements or threatening sms's