Beware of buying online with these guys..
This company is a (friendly) front for municipalities selling electricity. Make no mistake whose side they are on if things go wrong. Case in point: electricity is going up end of June this year, so they expect lots of customers to stock up beforehand. Beware!   If you owe your municipality money (for anything) and you buy a lot of electricity, Prepaid24 first takes all money owed to the municipality, then what's left can be used for electricity!  Even if (as in my case) there was no money owed, the lethargic slow municipal accounting just hadn't picked it up yet.. Happened end of April when VAT was pushing up prices, thought I'd be clever and buy lots of electricity. So Prepaid refused to reverse the payment, the municipality refused to refund the excess paid, also refused to give me electricity at the old price..