Shocking service - cell center & technical

I reported speed and connection problems with my Fibre line and it took Vox more than a month to fix. Now they refuse to give me discount for the low speed and bad connections. This after - endless calls from my side, misleading info from Call center people and a Manager who promised me a discount.

All he rep****, after I had to prompt him a couple of times was " As per the ticket I could pick up that the credit was not approved due to the fact that there was usage , the service was working , the speed issue was acknowledged and closed as best effort service from our side"

In other words: 1. Vox expect me to pay in full, even though they did not deliver a full service to me for over a month. 2. Vox would only consider a discount if there was no data usage from my side....!!!