Unhappy

I wrote numerous emails stating that I am not happy with the bed I bought, the one on the show room was nice and comfortable and the one I received was as hard as a rock reported it at the Secunda branch I was told that I have to live in it for 4 weeks then it would feel like the one in store I told the lady so then for 4 weeks I must sleep uncomfortable she said it will get better with time(really with a bad attitude), how will it feel after 8 weeks then????so now 25/10/2022 it has been more than 3 weeks and the rest that I get is really bad due to the hard bed, they said they will come and do an inspection but only between 10;00 and 15;00 I told them I can only be available from 16;15 as I am working and that is where it all just stops no further correspondence. Is it true that the beds that you see in store differs from what is delivered if so can I request a refund and go and buy from another shop? That sells what you see is what you get, I have never experience something like this