Accounts that exhibit this behaviour have had a restriction placed on them due to suspected unlicensed commercial use of BetFair data.This means that they have an enforced delay set on their account so the behaviour they see is effectively the same as that of providing access via a Delayed App Key i.e. delayed prices, zero traded volume. You should ask these customers to contact us directly via BetFair.com/support/" class="bbc_link" target="_blank">https://developer.BetFair.com/support/ for further information.