adding multiple dids

[marcin11]

This is regarding older version of a2b 1.9.4 (Cuprum) to be exact.
When adding multiple dids using list separated by comma individual dids are being inserted in to cc_did table, but only last did is inserted in to cc_did_use table.
The result is that the customer is not being charge monthly rate at the time of creating did destination using did that is not in cc_did_use table.
I have been searching the code, but I was unable to find a function that runs the loop and inserts new dids in to these 2 tables when multiple dids are being added.

Anyone can point me at the right direction.