Indeed. This could be a massive balls-up in ExpertFlyer's systems - but I struggle to see how the problem would be taking this long to resolve. It also could be related to a change in how the GDS data are made available to them, for example requiring the use of a different method to run queries due to the removal from service of an older/less secure access method.
I do worry that it's a commercial problem, though.
I also think, if they resolve the problem, that a significant service credit should be offered, not just 'adding the outage time to the end of the term paid for'. If it's not fixed by the weekend I'm going to have to pay for KVS in case I need to reroute myself on an awkward itinerary.