Best way to Post Form "Paid" Status to Data Layer

Essentially im trying to fire a GTM tag using GF only when payment status shows paid. Whats the best way to set this up. Competitors keep firing my Tags no matter what way I do this. Whats the best solution?

Hi Alberto. Which payment add-on are you using?

Stripe Credit Card Field and Paypal Commerce

I also see a bunch of site visits from “/?callback=gravityformsstripe” from a stripe host server. I don’t know if that might be the culprit. But also lately i’ve been getting tons of BOTs crawling my thank you pages.