Rude and not willing to negotiate

The beginning of last year my circumstances have changed and k was not able to afford the original system installed, for a few months i hae asked to remove the bigger system so that i can scale down to my affordability. They have kept refusing to give me a lower bundle. Last month they have the came and deinstalled the system as i was not able to pay. For 1 hours work they have now added R76000 to the bill and expect me to pay everything upfront. I get weekly calls from them after i have explained to various different members that i will only be able to afford to make monlthy payments of R500 and each time they say that it is unacceptable and I need to pay upfront. Where in your right mind do you think i must get that money from. You cannot deny me repaying you at my budget affordability.

They have not been willing to help or work together. Each week I get different calls from different staff members having to explain the whole story over and over again. I have already started making monthly payments to settle the bill, but still i get calls saying that I have to pay upfront.