Poor, *********** service from Netstar

I took a contract with Netstar since last year and the product that I took is the one for R199.00 a month, the one that I can be able to track the movements on the app that is on my phone. I was able to track the movements for only 2 to 3 months and after that I experienced problems with their app and I called them explaining the matter to them. They gave me new pin number to use but still I couldn't get it right so I told them but still they couldn't fix the problem but I was still paying for something that I can't use. I reported this matter several times to them but ddnt get any help. I called them and tell them that I want to downgrade this service to the one that is not using an app and was told I can't downgrade but I can only upgrade. What is the use of paying for something that you can't use?

I then decided to stop paying so they can attend to my problem but instead they took me to their lawyers saying I have a contract so I must pay them but at that time they also decided to cut my services. If I have a contract then why do they cut my services and demand money for the months they ddnt give me service? I am really ****ed about the poor *********** service Netstar is giving us.