Vault Key Issues

[Oiamo123]

Hello, I was trying to get a vault key to play with my friends on one of the missions. But I couldn't build them in the foundry even though I had all of the requirements. I have 2/1 Foundry Keys, 3K/250 Ferrite, and I have 89K Credits. I then tried buying all 4 of the vault keys and it still wouldn't work. I have 2 Tower I defence keys in my inventory, but it doesn't show them in the foundry.

 

Hope you guys can help, Thanks :P

Edited July 26, 2014 by Oiamo123

[Katinka]

You might want to put in a support ticket through support.warframe.com but I wouldn't expect an answer/fix until Monday in Canada.  In the mean time you might be able to trade for one from a friend?  I've never actually tried that so don't know.

[0Pinger]

I have 2/1 Foundry Keys

 

Void keys you mean?  you need one void key per vault key, but Not the Derelict keys