Rushed to a shop in Karama and felt totally ignored – need a better option

Last week my 2014 Hyundai i10 wouldn't start in the morning, so I walked into a random battery shop near Karama Center because I was desperate. The guy barely looked at my car, said "50ah, 150 dirhams" and swapped it in five minutes. No warranty card, no receipt, didn't even ask if I wanted the old battery. A week later, the car is cranking slow again and I'm pretty sure he sold me a used or refurbished battery. Now I'm looking for a proper Professional 50AH Battery Service in Karama that actually tests my charging system and gives me a genuine warranty. I found Amaron's battery page and they seem to have an authorized dealer network. Has anyone here had a good experience with a shop in Karama that treats customers fairly and doesn't just throw in the cheapest battery they have? I don't mind paying a bit more if I know it's a fresh genuine battery with a proper warranty card. Also do they clean the terminals and check the alternator as part of the service? Would love a recommendation for an honest place near the Karama post office. Thanks for helping me avoid getting scammed again.