Verizon Randomly Reactivated my Apple Watch

Location: Chicago US

I left Verizon in late 2023 because of pricing. Just this past June (2025) they reactivated my Apple Watch and started charging me $25.01 per month. New phone number (where these are usually tied to a phone) and no knowledge or consent from my end. I started getting emails about my payment being late (yeah, because they didn't have an active form of payment to charge me for the unwanted service). I called, canceled, and was then sent to collections for the $74.19 from two late fees and $50.02 of charges. I assume they're doing this because they know it's not worth fighting. What are my options. Obviously they've already sold the bogus debt to a collector, so they already got their ~ $12 of pure profit.