Add new bank account error

I am trying to enter my bank account details (KBC bank Belgium) but always get the error :
'The bank identification code you selected does not match the corresponding part of your IBAN.'

I think the Rekeningnummer must be wrong, but have no idea what would be the correct one. For KBC, I can choose from 50 different ones, all with the same address.

Is there someone who has the same issue or knows how to get this info or what I have to fill in??

The same issue for me - FIO BANKA, A.S. Iban checker (on IBAN.COM site) shows that IBAN and BIC is correct, but I see the same (The bank identification code you selected does not match the corresponding part of your IBAN) error.
Did you manage to solve this? I see that for Belgium, it asks for 'rekeningnummer', while for other european countries, it (correctly) asks for BIC code.
I have a the same situation and i searched like 3 hours but could not find any solution.

If your IBAN is BEXX YYYY XXXX XXXX, then your "account number" is YYY-YXXXXXX-XX.

The "Rekeningnummer" (bad translation of Apple) is the routing number. This are the first 3 digits of the old account-number format, so YYY. You'll see after you fill in this, Apple will pre-load your bank below as verification.

So: IBAN: BEXX735XXXXXXXXX Account nr: 735-XXXXXXX-XX "Rekening nr: 735"

That should do the trick :)

Add new bank account error
 
 
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