Not on wireless they cannot.
Remember that all three networks have ,at some point, offered unlimited internet then stopped. In both Orange and Safaricom’s cases, the issue was the congestion only just a few users were causing on the network.
And that some people were trying to run cyber cafes on just a modem.
Both Safaricom and Orange do offer unlimited internet via wired services. It will however never happen on wireless.
I have used Orange-cum-Telkom for over 5 years now. I used to have the dual-play plan for home. I love how it has rebranded & when they passed by my house yesterday, I couldn’t resist getting the 4g enabled sim cards(I took two; for the router and mobile phone) . Good thing is; true to their word, they offer 1gb on a 4g-enabled phone everyday if you buy ANY data bundle. The home plans also came with 10gb free bundles. The prices have also been slashed. I did a couple of speed tests & the speeds were really fast. The 4g signal ain’t stable but I have never gone lower than 2 bars. The 3g signal is stable. The only time I noticed it doing its typical orange-missing was when I was walking on in a ditch. Otherwise, it seems like they have really upgraded their infrastructure for real. I use it for IPTV & the likes. And am kinda liking it. I’ll take a screenshot of a sample speed test on my Q10 & I’ll upload it here. Am loving this ISP