Although if "cost of living" continues to rise, cancelling mobile contracts may be next.

Many less well off folk have annual or multiyear deals (which include handsets) so the cancellations would come at end of term for most.

I suspect the issue at hand is that a fast growing number of people simply can't afford non-essentials, and in the process of deciding what's absolutely necessary and optional, access to the Internet may not be a necessity when rent, food and energy (including fuel) consume every penny you earn (or, more than you earn, there's a increasing trend of short term loans being taken out to pay bills, which will come home to roost).