shocking service ex Jenny Internet

Jenny recently "upgraded" my dish - i now get ( or am supposed to get )100MBPS download and was "TOLD" i would get half of that in upload. in reality i get +/- 80MBPS download and if I am lucky a very unstable +/- 20 MBPS upload. the upgrade has been a disaster and a major nightmare. I work online from 8am to 6pm daily and i need to use my camera to interact with my students, since the upgrade this has not been possible and the crackling on the line makes it really really difficult for anyone to hear what the other is saying. I bought a new Logistic headset with mic - thinking that perhaps my headset was the issue, it arrived I plugged the new one in and it is NOT THE HEADSET, but the shocking connection and service from JENNY. I was told i would get half the upload speed when they did the change over, only to discover yesterday that "oh no, you will never get half - whoever told you that is wrong" if you are lucky you will get 30MBPS and yet today I was told "No you will only get 20MBPS upload". The service is shocking and the people in the call centre are more than useless. There are perhaps one or two which truly know what they are doing. Today they cut me off 3 times when I asked for a specific person... stay away from them.