Not surprised by this. I occasionally get calls from Amazon drivers asking where i am if I don't open the door. For some reason it never occurs to them that I'm simply not at home.
Then again when you order stuff on AliExpress, they might just print your phone number on the parcel.
Are you sure the call is coming from their work phone? Typically with food delivery contractors the driver's app has a VoIP button that acts as a bridge, so they don't actually see your number. Also important because the person ordering might have an international number with high inbound rates, so it would be a hassle dealing with billing that you would rather have Amazon/Doordash/Foodora handle with their gateway.
Then again when you order stuff on AliExpress, they might just print your phone number on the parcel.