This thread is a bit off-topic, but I couldn't find another section for it here.
I've been using https://labels.vc/ for a month now, I buy shipping labels (usps priority) from them all the time to send some detail parts through usps inside usa, saving a lot. I have 2 questions:
1) has anyone of you here used sites like this?
2) are these sites legal? customer service assures me that they have official contracts with usps.
(https://i.ibb.co/PMtwxgg/2024-04-28-19-05-47.png) (https://ibb.co/JqC5nHH)