Disconnecting Paid Wifi

At this point I am so much irritated even worse this month, almost every I pay and my WiFi is disconnected to what iv been explaining ever since I moved to the uncapped WiFi, the worse I called 2 times asked both ladies to call me back but because they probably don’t know what to do they are not returning the call, in order for my WiFi to be fixed I need to scream at someone and I don’t have the energy all I ask is my money back or they must contact the WiFi every month I explain the same thing I thought they have made a note for but unfortunately those people working there clearly don’t make notes!! This is not my fault I have these people a green light but I suffer every month what annoys me they disconnect my WiFi tha. Say it was not disconnected but always after I have screamed at them the WiFi will work!!!! Why