Poor internet connection

Lately I haven't been enjoying my Telkom services because of the poor internet connection. I mean, I am fully paying for the services, but the connection is so bad that I can't even load a WhatsApp image. So imagine how many important messages and emails I am missing because of the connection problem. Then Telkom thank us with a free 1GB, which makes matters even worse. Everybody wants to use it, and that ends up causing heavy network traffic, meaning the connection is even worse. Can something be done about this issue, otherwise we're gonna encourage other uses to also forcefully terminate their contracts as well becsuse no one wants to get half the services when fully paying for them.