Poor service

I ordered a phone from MTN and they use DSV to do the delivery of the parcel. My parcel was scheduled to be delivered on the 23rd. I received a phone call on the 23rd from the driver to confirm the address and the address was incorrect. I phoned DSV and we corrected the address. I got a SMS to say that my parcel will be delivered on the 24th. I phoned DSV multiple times on the 24th to follow up about my parcel and the only answer I got was that my parcel is in hold, after the incorrect information was corrected and confirmed. Between the 24th and the 25th I was on the phone with DSV for a total of 88min and still no news on what is happening with my parcel and when it will be delivered. There is NO communication from DSV's side. If I don't phone to follow up they don't communicate with me at all.