3week without internet even after paying

So last week when I wrote a review, atleast the Vumatel people responded & since then they have installed their router in our home as well. But , again back to square one with Supersonic. It is impossible to get anyone on the line anytime in their call center. Even the automated whatsapp chatbot doesn’t work. You guys need to register the new serial number for crying out loud.everything else is done. I have connected the wifi router to the vumatel box as well. Is there no customer service at all. If anyone from supersonic is seeing this please help. Almost 3 weeks since my relocation request is pending. It has become a harrasment.