Tober was spot on, called today, after 12 mins wait got the help service and found the item sitting in the sender return area. Quite pissed actually, the help person couldn't explain why I was not contacted.
I think I am going to stop using their locker and collection service.
got it sorted, gotten my bloody Gundam PG today. They couldn't explain what happen. I am considering not to use my parcel locker anymore, feels unreliable after two incidents.