Telkom/Vumatel fibre issues!

I have had the worst experience with Telkom in regards to the Vumatel Fibre deal. I was first approached by a Telkom doorsman who asked me to sign up for Vumatel fibre through Telkom, where I would pay R 800 for uncapped wifi and get the installation and modem included free of charge. This ended up taking about 2 - 3 weeks just to get set up with the modem and installation. Once I got the modem, I followed all the instructions in the Telkom box where the Modem came in. The internet worked for about 2 days (the wifi included) but then it suddenly stopped. I called Telkom to follow up on this and have since spent about 6 hours on the phone with Telkom with no resolution. Today I was told that the Modem was the problem. When I went to the Telkom store in N1 city I was told that the Modem is not the issue and that it I needed to ask for Telkom to send me a username and password (The technical agent for some reason was not able to get this for me). The funny thing is that even though he said that the modem was fine, he said he was not able to test it because they didn't have fibre at their store! I find that rather ironic. In any case, I called the call center again where I had to wait for a very long time and after multiple lines being dropped due to the bad line I finally chatted with a lady that told me after many attempts to try and solve the problem that the problem is with the router.

I am beyond frustrated and am thinking of moving to a different service provider, but if I can resolve this it would be the best for me. I have been using Telkom for years and don't feel like moving to a different provider, but this has pushed my patience beyond its limit.

Your assistance with how to solve this would be great.

Also: Even though the Modem Wifi lights are green and I tried rebotting and reseting the device it doesn't work. I also can't even access the 10.0.0.2 IP address they keep asking me to access.