silent link is super expensive. i use yesim but yes i used a card. probably simpler to just get the card anon with monero then use an actually decent priced esim service. not only that, if you run tor over the esim data connection who cares where it is. it isn't going to appear there. trace the paths. just put a couple of breaks between you and them and it's all the same. why build a giant pile of bricks on the highway when you can just walk on the dirt track in the wilderness?