Originally Posted by mlafqtv

Have had similar problems, which were resolved quickly (and surprisingly easily) by calling Avios helpdesk: transferred from my IB account to Avios household account
They can access your IB account - so long as you give them relevant info - and transfer from IB to Avios.com.
Avios helpdesk can also transfer from Avios.com into BA account: though I believe, if you have a BA household account you will need to 'unhousehold', transfer into BA and the set up household again.
Speak to folk at Avios, they will guide you: 01925 848619