Samsung is kaak

I'm so disappointed and ****ed, I broke my Samsung Zflip and took it to Samsung in mall of Africa to be fixed and I pay 15k after five months the phone just went blank, the screen became dark, I went back there to inform them that, I'm experiencing the same problem again and the phone did not fall this time, the screen just went dark, so they wanted me to pay 15k again imagine😩😩, I told them to excalate the case coz I can't pay again, I left the phone there since last year and they said they will call me which they never did, boom four months later I went back to check up with them, then they say that the phone is still somewhere, I need to request for it to come back, then after 2 days they called me to come fetch the phone, I asked them if they can atleast give me a discount since they are the one who didn't fox it properly, they checked for me and then they said that they don't have parts anymore so I must take the phone, so what am I gonna do with the phone since they don't have parts, why did they keep the phone for so many months without doing anything, now they don't have parts😭😭😭, since they don't have parts, what do I do with this phone, I bought it for 21k and fixed it for 15k, Samsung is useless, I will never buy from there again and people who works there have attitude at mall of Africa. I'm so angry.