To be fair, whenever you pay 1-2€/Month for something, you cannot really expect human/timely interaction. Paying a single support employee to look into your case for 10minutes already erases all revenue from the past years from you.
Can't complain about 1&1, also had dedicated 1HE boxes there for a long time w/o issues but I understand the grief in case something goes wrong.
I host DNS elsewhere so I can relocate such a simple proxy within a few minutes, that's what my desaster recovery plan looks like.