This is not a VPN Trick but who cares, what is important that you are getting a Classic Coupon in PUBG Mobile for FREE!
Now in order to get a free Classic Crate Coupon follow the steps given below.
Step 1: Open PUBG Mobile and go to your profile. Now, COPY your Character ID by clicking on the tiny copy icon.
Step 2: Open any Internet Browser on your phone, PC or Laptop and click visit PUBG Mobile Redeem page.
Step 3: The PUBG Mobile Redemption Center will open up as shown in the screenshot above.
Step 4: Now paste your Character ID that you copied from your profile in Step 1. And, copy-paste the code shown below in the Redeem Box.
Step 5: Correctly fill the Verification Code and click on the Redeem button.
Step 6: A popup will appear showing your IGN and Character ID, check it and click OK.
Step 7: Open PUBG Mobile and go to your Message Box and collect the Classic Crate Coupon.