Hi Huli, regards to your post. i had similar case like you.
first thing to ask is did you address ur real name for the delivery?
mine i post a fake name but real address and its been hold at Singpost since April 2020 till now. status is to go down to collect. But i choose not to. i didnt received any letter or call from them.
If ur are the same as mine, if letter recieved, just ignore, if called, just pretend you dont know anything. cos address is easy to forge. Although they have ur address but cannot anyhow go to ur place.
So bottom line, just forgo the items.