There could be a couple of reasons why your voucher code may not be working: 

• Correct Format?
  You need to check if your code has been issued for a single, EP or album. If you are trying to use a code for an EP release that is only valid for a Single, this won't work. 
  
  
• Is the voucher valid? 
  Voucher codes have an expiration date so be weary to make sure you use the voucher in the timeframe it's been created for. 
  
  
• Is it a competition voucher?
  Voucher codes given as part of a competition or offer will only be valid up until the closing date. Make sure you check the competition or offer guidelines before attempting to use the code. Once the competition is closed, we cannot make any exceptions as this will be stated in the competition guidelines. 
  
  
• Have you entered the code at the correct time? 
  Voucher codes can only be entered before you pay for your subscription or renewal. To use the code, click “I have a discount code” at the “Review your order” page and enter the code given before you proceed to the payment page.