Why can't my redeem code be redeemed?

If your redeem code cannot be redeemed, please help to confirm the following points:

1. Whether the redeem code is still within the activity period.
2. Whether it is eligible for redeem code use (limited to free users who never subscribe Whoscall Premium Plan).
   
3. Whether the redeem code is applicable to your region.
   
4. Whether the redemption times of the redeem code have been used up.
   

If you still have other problems with the redemption, please contact us at [e-mail]