Multiple Man Sold Out now too.
Something weird with that $20 coupon... probably because it is not supposed to apply to Marvel stuff.
It does not work with 4 figures like: Ant-Man/Wasp and Jackal/Ms Marvel, but when you add-in Sabertooth it does work. So you could get those 5 for $99.95 (plus tax) after the coupon. [On the final invoice: 2 items go down to $21.99, one is $29.99, one is $10.99 and one is $14.99.]
If you ordered the X-Men in batches of 2 with a $10.xx filler, you could pay $19.99 each using a separate coupon for each order.