Axxess cellc fixed LTE

I received my router on 22 February 2018 after phoning the tech support 3 times and being told its a service provider issue, i got it up and running eventually it was working untill Sunday 04 March and then the signal was intermittent,actually non existent. When you contact the technical dept you must fill in a form,i have done this twice with no feedback, since then I have phoned Axxess everyday and all they can tell me is its logged with ISS and they are handling it.. so its acceptable to pass the buck to ISS while I am paying Axxess for a non existent service?? I have cell c on my tablet and 2 phones wich runs perfectly when I switch the router off and go on mobile data, so why is there a problem with cell c or ISS, do Axxess accept the fact that their service provider do not deliver a service to their clients?? Maybe Cell C must review their contract with Axxess as its giving them a bad name at the moment. I've also requested that management contact me re this, no one at Axxess is interested if I measure them by the response!