Yes, it works everytime 100/100. I am ready to give 3 free tracking numbers to members who has older than 6 months accounts 30+ posts on this forum to test my service and leave a review.
I will try this but only after some good reviews.
Can I choose the country of the tracking number?
When I upload a tracking number to paypal won't the buyer be notified about it? If the buyer checks the tracking info what will he see?
Can you show some expired example?