I want a refund...you can take your phone back

I've never had such bad service from Edgar's and I've been a customer for about 10years. I went to buy a phone and was advised to buy Huawei P40 lite which I paid R6500 cash and even bought a screen and phone cover. Then I realized that the picture quality was poor especially the front camera, it took long to save/open videos, the speaker was low as compared to Y9 Prime (phone I was using prior) and it didn't even have play store/Google. I then called customer service they then said I could take the phone back but when I got to the store they said I couldn't but to my phone in on the 15 March and I was told I'd received feedback within 7 days of which I did not and constantly had to call in, then a very nice lady at Edgar's gave me her personal number to call for updates and finally on the 1st of April I was told I have approval to come and take another of which I then had to travel from Soweto to Festive Mall on my off day to collect the phone and I did because I was desperate. I then want to get Samsung A31 dual sim but was told I couldn't as it was now on promo and I couldn't get the difference though I had paid cash I think asked if they could put the difference in my account or buy a router but they didn't have and still they refused and my only option was Samsung A51 or P40 lite again. My question was why would I take the very same phone that gave me a problem and said my only choice was A51 as they needed to go home. Which I took but funny enough R200 and something was refunded back in my account, such nonsense!!! Now I'm stuck with a phone I don't want which only has one sim slot and I use 2 sims (cellc and rain 4G), it slow processing A31 is way better and it does not even connect when I use my 4G simcard and I now have to carry to phones and I had said I used rain 4G and i specicied that i use my phone for work. I even checked on the phone settings it's not even available. I want my money back please as a customer i have the right to choice and it the phone i had initially bought was faulty, why am i not entitled to choose any other phone discount she not be my problem. Furthermore it doesn't even quick charge for jack. I must say I'm truly disappoint in the service I've received and it wasn't my 1st purchasing a phone at Edgars but definitely my last. And I had gone to Hi-Online but l chose to be loyal to Edgars, all for what? I want a refund then I'll go buy a phone at a store that can cater to my needs as i can't continue to be this frustrated. I refuse to go back to the store where i'll given the same service/answers and then leave me phoneless for 2 weeks.