Avios Disappeared when using Combine my Avios

[SR]

Hi

can anyone help me,

I attempted a combine my avios from BAEC to avios.com and an error message appeared that the transfer failed. Later I saw that my avios had left my BAEC account but there is nothing in my avios.com account.
I never received any email from either confirming the transfer.
Who should I contact to help me?

[meta]

When was the last time you had the activity other than transferring in on Avios.com? Your account might have expired if there was no activity for 36 months.

[SR]

loads of activity, earning and spending.
I thought perhaps because avios.com is closing down it didn’t go through but in that case my BAEC also should not have been debited, so not sure what’s going on