买了5样buy one get one 50%off的东西，每样数量为2，结果每样打折都正确。。。改数量，或者买四样就打折混乱。。

This shipment includes the following items:
1 GNC Gold Card Program Gold Card Expiration Sticker - 1 ea $.00
2 GNC Herbal Plus Standardized Ginkgo Biloba - 100 Vegetarian Capsules $11.33
1 at $3.78
1 at $7.55
2 GNC Triple Strength Fish Oil - 60 ea $12.59
1 at $8.39
1 at $4.20
2 GNC Fish Oil with GLA 300mg, Softgel Capsules, Lemon - 180 ea $22.49
1 at $7.50
1 at $14.99
2 GNC Biotin 5000 - 120 ea $26.99
1 at $17.99
1 at $9.00
2 GNC Triflex Fast-Acting Dietary Supplement - 240 caplets
$60.29
1 at $20.10
1 at $40.19
1 GNC Gold Card Program GNC Gold Card - 1 ea $15.00
1 GNC Herbal Plus Bilberry, Vegetarian Capsules - 100 ea $11.34
4 GNC Salmon Oil 1000 mg, Softgel Capsules - 180 ea $22.48
4 at $5.62
4 GNC Natural Brand Spirulina 500mg Capsules - 100 ea $17.72
4 at $4.43