Disgusted with your service

I ordered a package with VOX in 2018 ( 20 Mbps Download and 10 Mbps Upload ) and not once have I ever had an upload speed of 10 Mbps and as you know Fibre is stable so I should get a little more than the speed I pay for. But whenever I do a speed test I receive 5 Mbps upload or less. Not once since 2018 have a received my speed I have been paying for all this time. So when I contact them yesterday evening I asked Technical Support to check on System what package they have me setup as and the gentlemen tells me I am on a 20 Mbps (Down) and 2 Mbps (UP) yes 2 Mbps and the reason I took the 20(Down) and 10(Up) was because we stream on Dstv/Netflix on 3 TV's at the same time. I am disgusted I have been paying this money all the time and I have been downgraded without my knowledge. (With a price Increase). I don't care if it price alignment or what the reason is. You do not downgrade me without speaking to me and getting my consent. So I need to know what you guys will do regarding this. And I will take this further as I never missed a payment since 2018 and this is the disgusting service I get from you. So you guys can take my money for a specific (speed) package but you choose what service and speed you give me without me the customers consent.