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Do you need help with energy prices and efficiency? For a cheaper deal, or advice about help with the cost of insulation, call 03700 100 444 between 1pm and 3.30pm or email moneybox@bbc.co.uk.

If you haven't checked what you are paying for your gas and electricity recently then you could be throwing money away. To find out if you could pay less, dig out your bill and call our energy experts to compare costs.

Perhaps you have heard about negotiating lower rates through collective buying and switching? How does it work and where can you find out about it? If you are already in a collective tell us how it's going.

If you want to make your home more energy efficient, ask us about help with insulation costs.
The Green Deal has just been launched offering 45 different types of energy efficient measures. The government hopes the savings people make on their bills will pay for the cost of the home improvements, and there's a cashback offer for some. Would it work for you?

What are the alternatives if the Green Deal does not appeal? Could you be eligible for help through the Energy Company Obligation system or the Warm Home Discount scheme?

Put your questions to Vincent Duggleby and guests:

Andy Deacon, Director of Delivery, Energy Saving Trust

Joe Malinowski, Founder, The Energy Shop

Ann Robinson, Director of Consumer Policy, uSwitch

To find out more call 03 700 100 444 on Wednesday, lines are open between 1pm and 3.30pm. Standard geographic charges apply. Calls from mobiles may be higher.