Hopefully I don't make the same mistake to get another Samsung

Hopefully I don't make the same mistake to get another Samsung when I renew my contract. My S8+ screen was cracked when I dropped it. So I went to them to get a damage report. A few days later I called and asked them If they have stock on the screen. They said they do. So when I asked if I can book it they said they don't stock the screens and I must come in to pay for it then they will order it from the warehouse. Does this still mean they have stock? Didn't you understand my question? No problem ... So I went to them and payed for the screen and they said it will take a week. Wednesday was a week and I called again to confirm and they didn't have stock and promised to call me when it arrives. Today is Friday and they still didn't call me. Today I have tried several times to call but the call just drops immediately. Samsung it is more than a week. Are you still going to call me? The problem here is that Samsung is a great product but the service in SA is the worst ever and makes any product bad.