How the ever loving f**k do I get someone on the phone?

Is it even possible?

the receiver wasn't around when they went by and now when he calls they tell him they won't give him the package without instruction from the shipper? Which makes no sense since it's literally got his name and address and phone number on it. Cherry on top I can't even talk to anyone because UPS phone system is not possible to get through. So what I just wait for it to get shipped all the way back to my country?