Tulip Permanent Fabric Dye (Hot Black)

I recently purchased this in order to dye a royal blue cardigan black and to dye some bleach stains out of a black cardigan I had. Both where made from cotton. I followed the instructions to a T but once they had dried the bleach stains remained and the royal blue cardigan was patchy. I tried something different with each of the three packets leaving them to soak longer each time but it didn't work in the end.

Ordered two and only one arrived and didn't do a great job on my black shorts.

Described as a pack of 3, only received one.