I’m not convinced that it’ll actually work, but Top Cash Back offers $75 for new Sprint customers!
The most reliable way to use Top Cash Back is to log in to Top Cash Back with an incognito window to prevent any previously existing cookies from jacking the referral.
I followed the Sprint referral link from Top Cash Back and “shopped” the Sprint website for a bit and its clear that this offer isn’t visible to the general public.
I browsed the Sprint website until I was at https://www.sprint.com/en/shop/offers.html and edited the URL to add just the “free-unlimited” portion of the URL from the link that Stubtify provided above. (I didn’t add the “?ECID=vanity:1yearfree” portion though. Instead, I left the parameters that were already there in my URL.)
Having done so, I saw the offer as it appears using Stubtify’s link above and I went ahead and placed my order.
I’ll be completely astonished if the referral link actually scores the $75 but stranger things have happened. Fingers crossed…