[WTB] Mana for my coal.

Hello there fellow defenders. I've seen that these past few weeks literally no one is buying coal for mana, and i'm running quite low and in need of some spare mana for upping items.
I run WW daily like 2 times and by the time someone responds I could have 4 - 5 or more coal to sell for mana.
If anyone is interested in giving me some mana to refresh my bank, i'll gladly accept a price around 15b mana a little less or a little more. Thanks for checking =D

(English isn't my native language, sorry for errors) :)

Edit: Not selling any more coal, the kind gentleman known as quiet sold me about 106 billion mana =P.
But if I ever run out and this post is still relevant i'll edit it.

Hello, I think I have some on an alt. PM me :)