terrible services and possibly theft

Ive been expecting delivery from last week MON ********** . They havent contacted me and I keep calling to find out the status of my delivery and no one can answer. I logged a complaint with 24hour mobility and they confirmed by Device was delivered and signed by a Daniel, I do not know a David and did not give them permission to deliver to anyone besides me. I got an email from Lavona Sylvester, saying my parcel was delivered and signed for by Daniel. I do not know a Daniel, I did not give thm permission to deliver to anyone but me. I spoke to Nonhlantla at the courrier guy and christo called me at 14:50 saying they will not be delivering my parcel and today all of a sudden its signed and was delivered? I called Christo this morning and asked whats this so mny different stories and he cannot give me an answer. ????