That's why SK Broadband (not to be confused with SK Telecom, a much more popular ISP that shares little infrastructure with SK Broadband) goes to the government

That's why SK Broadband (not to be confused with SK Telecom, a much more popular ISP that shares little infrastructure with SK Broadband) goes to the government and whines about evil foreign companies clogging up their pipes. They can't make the first move in the market, unless everyone else is required to do the same. Korean telcos do collude all the time, but even here, a surcharge for consumers who were previously promised unlimited data is not something they can get away with.