I had exactly same problem today, after ~2 months of charging Leaf without issues with Blink (110 V for first couple of weeks). Tried to put charger in & out of the car many times on both 220 and 110 v chargers - the car would think its plugged in (charging symbol shown in dashboard) but not the...
So I presumed that I would not qualify for free charger, and did not look into this until recently. My dealer rep @North Bay Nissan (Ron - great guy) told me to look into this. I finally submitted online application from Nissan Leaf site.
Can someone give me ballpark estimate as to when I can...