Lost package in transit

I bought a Samsung J5 on takealot on the 26th of October 2015, 2 weeks while using the phone the screen became defective, I logged a Return and got a return number. I personally put the phone,charger,headsets and battery in the original phone box. Then plastic wrapped it, and put inside a big box. The courier company came to collect on the 10th of November 2015. This week I got calls from them telling me I did not pack the battery and the charger, of which I did as I read their exchange & return policy. I am highly disappointed as this was my first online purchase and I wanted to shop more. Its been a week and they tell me the supplier will not credit me as I did not put the charger and the battery, Infact from what I got from the consultant she said they say 'There is nothing they can do' . Please help me guys, I really loved that phone.