Topics: Steam Support New and Updated Knowledge Base Articles
If you were previously upgraded to Prime and have lost that status, all you have to do is continue to play and earn XP. Once you reach Lieutenant Rank 21 you will again be eligible for Prime Matchmaking.
Prime Account Matchmaking excludes some types of phone numbers, such as VOIP numbers and some carriers. If your Steam phone number does not qualify, you ll be notified when you click the Upgrade button.
Please note that we cannot make any exceptions. Should your number not qualify, you will need to re-associate your CS:GO account with a qualifying phone number.