"Knott-Craig said that any regulatory intervention that is found to be necessary, after a proper investigation, must be proportionate." blah blah blah.
Basically, if someone can offer the same services you're offering, at a cheaper price, and still turn a profit, then you're seriously over pricing things. So stop with this talk of "proportionate" and "sustainable" if you can't at least match the prices of your competition, then you're not sustainable! period.
I've been using Cellc now for over 6 years, have largely been a happy customer but recently (past 3 months at least) their data network has been some of the worst, here in Kempton Park where I run my business and live, there is plenty signal, but no 3G, I can do a speedtest right now on my phone, it won't work, and whenever I try to browse, it gives a proxy error, and this is not a phone settings issue, as when I'm at my clients in Bedfordview, its fine, and then in Woodmead, its the same crappy story.
Honestly, before you go ahead and say all the things about having to build 4000 base stations all over the country to provide 97% population coverage, and how expensive it is to cover the sparsely populated areas, cover the densely populated areas then, properly!!! Great that you thought of the cows grazing in the fields out in the Karoo, what about the humans here in Joburg???
