After sales service from HiFi Corporation is non-existent

Very bad after sales service from HiFi Corporation. I have ordered a Linx Ross Typist Chair on the 15th of April and it was delivered on the 21st of April. After opening the box, I realised that there were parts missing and that it was used merchandise which you can clearly see from the packaging. I have emailed them the same day and asked them to please come and fetch the chair and give me a refund. I do not have transport and I am sick in bed, that is my reason for not going into the store to take it back and I don't have someone to take it back. This was their response:

Good day

Hope you are well today We have escalated your request to the relevant department to assist, your reference number is ***

Kind Regards

Masego

Hi-Fi Corp Team

JD Group

On the 25th, I have emailed them again, and received the same message. NO ONE CONTACTED ME, I AM STILL WAITING.