I am a fan of Pbmining. I'm in profit too and up 20% on my original investment in February 2014; however I bought some extra GH over the weekend, paid the correct amount to the right address; but still it hasn't been credited.
I accept that it was the weekend and they may be busy, but just a simple "we're looking into it" email wouldn't go amiss.
If I go on blockexplorer
http://blockexplorer.com/tx/8ad668902486fd328c952c3ddee13f180261242673e6a7cb0b1c54bb734f8717It says 'Not Yet redeemed'
Somethings up

BTW I got paid as normal on Sunday too, so still a fan until proved otherwise.
Blobby