Telkom Sucks!!!

I app**** for a adsl telkom 10Mbps line and I am paying more than R800 a month for this line. When I app**** for this it was a 10mbps line during peak and off peak hours (there is confirmation of this as all calls are being recorded), they never mentioned anything about throttling the line as per usage. Then suddenly one day Telkom decided they are going to replace my adsl line with a LTE router without asking my permission or giving me any options as I was at work and they left the replacement router by my neighbor and that evening I had to start using the replacement router as my adsl line was suddenly disconected. Now I am still paying the price for a 10mbps line but they are robbing me because I am constantly struggling to connect on the internet and to watch anything online. I app**** for a 10mbps line for a reason, because I didn't want to struggle with internet speed. I might as well pay for a 2mbps line because that is what my speed test always shows. I took screenshots of all of this as proof. It doesn't even get to 2mbps which makes it almost impossible to do anything online. How can I just give my hard earned money away every month for something that was agreed upon between Telkom and me, but they are allowed to chop and change as they please without any explanation but still take my money even though they are not sticking to their side of the agreement??? It is impossible to use this internet connection with the new router because it is always so slow and now all of a sudden I see on my online Telkom account that they are giving me a certain amount of data usage on 10mbps and if that is finished they put me on a 4mbps speed and then after that a 2mbps speed but I am still paying for the 10mbps line. I am really furious regarding this, because it is not what I agreed upon. TELKOM GET YOUR ACT TOGETHER AND FIX YOUR PROBLEM PLEASE!!!!!! These routers are up to ****!!!! You are *****ing our money!!!