In the last two weeks, the extremely high internet...

In the last two weeks, the extremely high internet of very high ping downward speeds has varied and uploads will not measure.
Ping goes from 400 to 1000 and the internet shoots every 10 seconds. Please resolve this issue as soon as possible, have a chance of this internet working normally or you are unable to enable us. By far the worst internet service provider in Serbia. I would give you zero for the terrible and disastrous internet. Worst steeeee !!!!!!!!!!!!