I couldn’t do complete a DWAC with IBKR, as the CUSIP wasn’t...

I couldn’t do complete a DWAC with IBKR, as the CUSIP wasn’t recognised. I just had a chat with them and was advised that they won’t accept the stock as it’s a micro-cap!!! Even though CBRs own DTC FAQ specifically states using IBKR!! I got to the end of the DTC election and before submitting, it says it’s legally binding and irrevocable, luckily I didn’t proceed. This is very frustrating, I will now look at wstpac. I would love to hear someone has been successful in transferring their shares