Credits get added to your oDASH account on every renewal of your oDASH subscription. They are cumulative in nature and do not have an expiry. Credits can be redeemed by sending auto-invites to our 30 million+ registered user base to generate visitor / exhibitor leads for your events. You may choose to redeem all or a portion of them.
If you want to buy more credits, please go to: https://requestdemo.typeform.com/to/jDWPQ4