There is an achievement award for coloring a super heroes pack but, I can't find one?

I've sent them a message and they've told me that they are about to release it.

Still can't find the superhero pack. Wonder where it is!!

Where is superhero pack?

I have it. Make sure your app is updated.

I have app updated and still no superhero pack. I have a Samsung.

My app is updated and I don’t have it either. I use an iPad

I can’t find it either. Sent them a message through contact us in the settings cog. Waiting for reply

Received reply from support that they haven’t released the pack yet, stay tuned for updates

I think its under marvel category

It is under Marvel and you have to pay for each one.

Does the Wonder Woman free one count?

There used to be one. I think once they started Marvel it disappeared.