BAD SERVICE ! Very Disappointing

We have signed up with Vox as a business that uses our internet as our core business. we moved offices and prior to moving we engaged with them to install Fibre a our new premises. They promised a wireless link while the fibre was in progress in order for us to have internet connection at our offices. One week prior to our move they did a site survey to install the wireless. We had no communication from them and they knew our moving date.

Once we moved they again said that they had to do a site survey for a Wireless link. They gave us a LTE router in the meantime so that we can have internet - I have mentioned we are a fully function BUSINESS

They did not provide the data on the LTE and we had to purchase it our self @ R900 for 10 GB we use around 150GB minimum a week . they then said that they would give us only 20GB for free and we would be credited

We moved in on the 8th September 2017 - ONE MONTH LATER ! we are still sitting without wireless , Fibre and a HUGE Data bill as we had to work during this time . There was no project management of this and little communication from VOX team

Our engagement with VOX started in June/July and then when we said we are cancelling due to bad service we got threatened that there would be penalties as we are in a SLA agreement

My question is now what about service delivery penalties and the huge data bill that we had to purchase bundles from Telkom and Vox to maintain business flow