Have now been in contact with Amazon.com.
I could get back $ 99.80 which was 20% of the purchase price .. Or send them back.
Think, think, is not sure what to do ...
It is slightly acidic and send back when I first started using the ..
It's really just cosmetic, but it's a bit annoying ..
So I'll think a bit this weekend ..
They are now connected to john blues amp for recording ...