Purchased Licensed Activation

I just migrated from a sophos xgs 2100 firewall to another sophos xgs 2100 firewall appliance by successfully downloading backup from the previous 2100 and restoring to the new one, before this time i have purchased the license for the new appliance and gotten the license schedule but there was no license key attached t the schedule, so currently my new xgs 2100 sophos appliance is currently showing evaluating as license status what can I do to resolve it and activate my purchased license