No after sale service

Extremely poor service (Actually NO service) after my Samsung phone stopped working 7 months into a 24 month contract with MTN. No one able to assist me at MTN store (they sent me to Vodacom for assistance), email sent - with no reply. Message on FB messenger with promises to be contacted the next day. I contacted Samsung SA myself and got response within an hour (on a public holiday) and they advised me where to take my phone. I can't believe I received such extremely poor service from a company that I have been with for 22 years. Obviously NO after sale service from THAT side.