I recently had a very traumatizing experience with a client I was consulting for and whose preferred mode of connection is Safaricom 4G.
For two days I was struggling to figure out why what seemed so obvious (in my mind) was NOT working with Safaricom while I had tested the same with JTL and Access Kenya links.
It turned out that Safaricom truly tamper with traffic to the Internet. This includes even VPN traffic.
This test result presented here is not a surprise to me at all. Safaricom's DPI (Deep Packet Inspection) systems are so robust and advanced that they can do ANYTHING with your traffic.
I wrote a private email to Stephen Chege of Safaricom (we all remember him) but didn't receive even an acknowledgement. The problem I had - with DNS and VPN still stand unresolved.
And this is why I am always suspicious about the dalliance (for lack of a better word. I am thinking in Dholuo and translating to English) between Safaricom and the govt, especially since one of them was given a senior govt job!