Cell C running FALSE ADVERTISING with regards to Cell C Fibre Speed Packages

Cell C is running false advertising with regards to network speed packages. I recently (on 27 February 2025) had my 50/25Mbps package activated that normally costs R599 a month, but was on promotion for R479 for the first 2 months. Upon activation, all was okay with the internet speed on all three platforms (i.e. Ethernet Connection, 5G and 2.4G WiFi). As of 28 February, things turned south. I didn't initially report it because I thought it was going to resolve itself out as I was hardly at home anyway because of business. Now it is a week later (07 March 2025), and things have gone from bad to worse. My 2.4G speed has moved from 36/36Mbps to only 2.53Mbps Download and 5.50Mbps for Upload. Please note that there are neither additional people nor devices that are connected. Also please note that with my previous ISP (Telkom Fibre) I never had any problem like this on exactly the same setup. The only difference is that I replace the Telkom's D-Link Router and put up the Cell C Zyxel router. This seems to be a classic case of throttling by Cell C Fibre, which goes against what they have advertised that they don't do any throttling. As things stand, I can't watch any YouTube video in high resolution because videos keep pausing to load, and thereafter play at extremely poor resolution, all greyed out and impossible to see faces or words. Fortunately for me I'm currently having a pocket router with a Rain SIM which I am currently using in the interim. Please also note that Cell C will be billing me a full amount for March despite this poor service. Also, when I tried calling in I was attended by an agent named SANDISO who demanded that I send images of the speed tests and with a tone as if to suggest that I was lying. Regardless I emailed the image of the speed test but was told that I will have to wait for at least 24hrs to have my problem attended to. Lastly, before sending this Review, I had tried to call in again to see if I can get another agent that could assist me. However, I can no longer get through the consultants, instead when I choose Option 2 for Fibre Support, ***), then I choose Option 3 which is said to be for Customer Services Center. Thereafter I am asked to enter a number my query relates to. I don't have any number that relates to my fibre line which means it is now impossible for me to contact customer services. How am I expected to get any help if Cell C is doing this? I believe it is that SANDISO that did it because before speaking to him I was able to get to an agent after Option 2. This is extremely poor service by Cell C.