Frustrated cx

In March I migrated from another ISP and upgraded my lines, my line was activated on the 10th of March and every week from that week I have been contacting about the same issue, my line keeps dropping and requesting me to sign in to network now under normal circumstances i wouldn't mind i would just contact and have them fix the issue but i work from home and I really need wifi, it hasn't even been a month since my line got active but I already have 3 tickets and they all for the same thing, what is concerning is that no one seems to care on checking the root cause of the problem worse the ISP seem clueless on what they are doing and when you contact Vuma they redirect you to the ISP, this is my second ISP and i am not happy at all