I guess as an ISP you should deal with demand and not push "abusive" customers off. As a Naspers company, digital media / IPTV / streaming etc will become their bread-and-butter. Within the next 24 months you will see IPTV/streaming services like Netflix local - makes me wonder how a sluggish company like Mweb will cope then.
Bandwidth is becoming a commodity - 3 years ago the international resale price per/GB was around R35/GB and now its around R1.40/GB (this is based on company pricing and not heavy ISP discounted pricing getting traffic directly from Seacom etc). So even with my last month 350GB of traffic, Mweb would have made profit (and substantially more from people who are well below the quota).
If you take a Mweb 1MB line @ R199 and consider that bandwidth costs R1.40/GB (this is probably double of what Mweb pays, but lets factor in other Opex such as admin, infrastructure etc), a user will be able to consume 140GB/pm before becoming a loss-lead. So in my Premium Uncapped case (R 539/pm) I could have gone 385GB/pm before becoming a loss-lead. Mweb's interpretation of abusive/violating AUP is really just a user which does not generate big profits.
This stance will never fix Mweb's growing bandwidth demand and diminishing profit-margins due to declining bandwidth costs. Data will eventually not contribute to profit and companies such as Naspers have great opportunity to reinvent themselves (as content providers), but obviously corporate greed and lack of vision will prevent them from reaching this lucrative goal.