Energy suppliers at the moment don't accept accounts in more than one name.
It is possible to have joint bank account details to pay for your energy, but most suppliers only allow one name on energy bills.
If you would like to change your bank details let us know and all your future switches will be with those new details.
To change your bank details with a supplier we've already switched you to, simply contact your supplier directly!
See https://switchd.co.uk/guides/suppliers/ for a list of supplier contact numbers.