Good news, they just credited my account with the amount I sent in the SEPA transfer on April 10. I have to admit that in my case, despite my strong fears, support did respond to me the same day and gave what appears to be a completely genuine excuse regarding the Unicredit currency exchange site being down (including link proving this to be true). This morning I checked and saw that the bank currency conversion site is back up and I was about to send another message to support but the had already credited my account with the full transfer amount.
So in the end I had a support ticket response the same day and the money in my account within 3 days of sending it. I admit I was really scared by these issues but I do believe they are honestly trying to fix things as fast as possible. I am satisfied with the service at this point. I don't like to have missed a 50 entry point for bitcoins but who knows with this wild west market what will happen.
I also have to say that I probably didn't help things by freaking out so much before the 3 days were even up. Anyone who sent the SEPA transfer more than 3 days ago should contact support with their confirmation and also contact the Bitstamp representative in this thread.
Anyway, thanks Bitstamp! I do like the site and look forward to doing more business with you guys.