Oh, BTW, a very different topic, which might have justified a thread of its own:

For some time the myibidder notification showed incorrect final sums.

Example: The notification told me:

Item #190947116734: raspberry pi komplett: 4GB sandisk ultra, wlan, netzteil, usb 2.0 hub ,HDMI Adap
Final price: 25.50
Snipe: 36.66
Status from eBay:
Your snipe was too low due to eBay's bid increment system

The real final prize of http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=190947116734 had been EUR 54,08. I never lost, due to an incorrect bid, but the quoted final prize had been incorrect.

I noticed several times within the last weeks that I was notified about an incorrect final prize.

I don't know whether you changed anything, but the most recent notifications seemed to be ok, no complaints about that.

That's because eBay did not provide the final price when auction ended. This is rare, but happens especially during peak hours on weekends.
Myibidder tries to fetch it a few times and when all of them failed, it will give up and just show the information from the latest update only.