By the GIG mobile

Does the by the GIG plan include two lines or only one? And why did my by the GIG go up in price which is contrary to what I read here? I also got in on this plan when it started.

By the Gig

• For customer accounts established before May 18, 2020, but not upgraded to a new plan, a minimum of $12 will be charged per account per month for lines on the By-the-Gig data option regardless of the amount of data used across the By-the-Gig lines on the account. Customers who elect to add lines to their plan will be charged a one-time $25 per line activation fee, which will appear on their next bill following line activation. Customers further will have the option to purchase, for a flat monthly fee, buckets of data that are shareable on up to ten By-the-Gig lines. Customers that exceed the monthly amount of data in their shareable bucket will be charged $12 for each GB or partial GB of data overage, or may opt to move to a bucket with more data. In order to access 5G mobile broadband networks on their 5G devices, customers must switch to the $15 rate per GB plan described immediately below.