Worst customer service

since monday i had intermettent connection after 5pm,but only logged a case on wednesday or thursday i cant remember exactly. yesterday it started to say connection failure around 12 in the afternoon then today from 4 till now i am experienceing the worst service ever. i phoned customer care and asked them to escalate to noc. Victor from NOC has been my nightmare with extremely poor customer service whi do not have listening skills he wants to talk none stop instead of him listen to me i gave then exact times when the drops happen but he tried to be clever with me asking me technical questions and when i answer him he hung up on me my reference is 296373 he then sent an email saying too many devices are connected upgrade your line, this is a family line and i connect 5 devices which has been like that all along i need a solution