They're getting better. They unlocked 1 of the 2 books that I bought from them. The other is still locked though. I know I have two books coming because they charged me $1.63 and both books are just .99. It's simple math.
.99 x 2 =1.98 -1.63 = .35
100 - 35 = 65
65% x.99 /100 = .64 cents (the coupon)
.64+.99 = $1.63
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