Can you find the ADRMAS IDOC in BD87 and tell which status it has.
I am not certain if it is possible to load this bank address separate with ADRMAS Idoc.
If I do not know then I usually setup a little ALE and send the data (here with FI08) to check how the IDOC(s) looks like.
I actually think that this (extra) address is part of message type BANK_CREATE segment E1BPADR1