Bad and Poor Service provider

We have logged a call with Home Connect for service connection on the 6th November 2022 until date with no Help. they been trying to shift the blame to Vuma-tel and yesterday a gentlemen by the name of Thando Mbatha refused to issue us with free to use router simply because we are a returning customer yet they have already issued an invoice and started billing us. Until date we still haven't received any joy from Home Connect. The manager on duty yesterday also gave us an attitude and refuse to speak to us.