Help With GRAM takeover of PNA

Hi all,

Long story short I stopped tracking PNA shares and realised that I never received a payment from GRAM for their takeover.

I came across this after going back to sort out my CGT situation and couldn't find any paperwork or payment.

I chased them up and called computershare based on this site below.
https://panaust.com.au/gram-takeover-offer

Computer asked me to call ASIC for some reason but I couldn't find an appropriate option so didn't go through with it and Boardroom said they would get back to me but never did.

Obviously it is 5 years ago but is there a way I chase this up or is it too late?

Any help is appreciated.