Unable to buy prepaid electricity

I have been using Powertime for about three years to buy prepaid electricity.<br> Three times in a row I was unable to do so any more - nothing changed on my side: Same address, same meter number and same credit card.<br> I have communicated with Powertime about the problem by e-mail as well as phone. They did nothing.<br> They used to be good, now they are bad, bad, bad three times in a row.<br> Do yourself a favour and find another provider.