TekSavvy is one of the leading independent ISPs in Canada.
The CRTC is (roughly) the Canadian version of the FCC.
This price increase is in response to a CRTC judgment that allows Bell to force usage-based billing (UBB) onto its wholesale customers (who are, for the most part, independent ISPs). Before this decision, Bell was unable to sell them packages that took bandwidth used into account - so they could force their own individual customers onto UBB, but not the customers of their wholesale purchasers. This is no longer the case - now they can (and will) charge independents a per-customer fee (like they used to), plus a fee for bandwidth used.
The rates at which they're now able to sell independent are the same as those they charge their own customers, meaning Bell can now effectively set a floor price for the DSL market. Furthermore, independent ISPs can no longer offer unlimited plans.