Alright, this is very likely a labeling error, but worth a shot.
Walmart has their 6-pack of Oral B Essential Dental Floss for $1.97
The minimum order is 2 packs.
Make sure to screenshot, etc:
"Oral-B Essential Floss 55 Yards Waxed (Pack of 6)"
...and yes, I did order 10. Have many years of floss now