For those encountering an error while redeeming prepaid Riot Points cards. First make sure that you are entering your code in the "Purchase RP" section of the store, and NOT the promotional codes. Some of the older cards will tell you to enter it in the promo code section.
Here are the full instructions on how to redeem a card: http://support.leagueoflegends.com/e...payment-method
There are 2 type of errors at hand here regarding redeeming prepaid cards:
1. Generic store error - "You have encountered an error. Please try again later."
This is currently an issue we are aware of and working to fix. This means that your game client is having a communication issue with our store. No matter what code you enter, you will get this error because our system is not processing anything that you are submitting. For this, first you should attempt to input the code again without spaces and CLICK the submit button instead of just hitting enter. Also, you may want to close your game client, and clear the cache from Internet Explorer, and then try it again. Additionally, it may take a few tries at redeeming for the client to reestablish communication. You may want to wait a few hours and try it again.
2. Prepaid card specific error - "Your redemption code does not appear to be valid", etc
These transactions are going into our system, but the number got rejected. This could be due to a few reasons. Most common is making sure that you only enter the numbers, with no spaces or dashes, or the number on the card is entered incorrectly. Additionally, the card may have already been redeemed, or the store did not active the card properly. If this is the case, please go to http://support.leagueoflegends.com and file a Billing ticket.
When writing tickets to Billing, to expedite the process, please provide the following:
-Username, Summoner name, and Server:
-Dollar amount of card purchased (Required):
-Scratch off code on the back (Required):
-Country where card was purchased (Required):
-Picture of the receipt and backside of your prepaid card(s) (Required):
I hope this helps to clarify the errors!
TL;DR Enter your codes in the "Purchase RP" section of the store without spaces. CLICK the blue Submit button (do not press enter).