Messages went from $.05, to $.10, to $.20 to send and receive. That was in the span of three years. All of the companies said it wasn’t collision. They just happened to arrive upon massive increases separately.
If I recall, one of the CEOs said “We’re raising the prices to save customers money. This way they’ll be an unlimited plan”
The telcos should have been broken up then. Instead we’ve seen even more mergers.
Edit: forgot to include the years. This was in the U.S. circa 2005-2008. Telcos have moved onto other sleezy practices now.*