Vox Telecom Bad Service

I decided to suspend my services with Vox Telecom as they were not providing me with the services they promised they would. I was paying for a 100mb line which almost 98% of the time was below 40mb if even. I reported this almost daily to the Vox team and was told they were aware of this issue and that TT Connect was to blame due to issues with their fibre infrastructure. I told Vox that I would not pay for this as it was unfair. Vox has a no care attitude and respond as follows:

"Good day As per our telephonic conversation last week there are no credits due on this account, the full outstanding amount needs to be paid to reactivate the service. This is a best effort service and for that reason we cannot credit you. Should you require any further information or assistance please do not hesitate to contact us." This is their response and they will not budge. I find it ********* for a company like Vox to bill the client for a service they are not receiving because of their providers fault. I find it totally unprofessional how they handle clients.

I am totally disappointed and disgusted with how you handling this Vox and I will not pay for a service I did not get. I have asked you to rather bill me for the package you were providing instead of the 100mb fictitious package you supposedly provided.

Please respond on this forum your solution to this issue.