Dissatisfied with Samsung support

During 2 last updates on my S8 I receive sound notifications from somewhere and I cannot find them. Phoned Samsung to be told to travel ****m (return) to a service centre and do a software reload as it is an operation software that has gone faulty. Not going back to that service centre in Port Elizabeth as they lost very important data of mine last year and ALL they could say was sorry when they did a software update as well. First Samsung that has given me so much problems. Dissatisfied with service backup and support from Samsung.