How can I trust

Hai am the beginner while using I phone for my colleagues said, last 24 month SM using apple I phone 11 and also using I pad & recently am purchasing I watch serious 6, Ammad am planning to update next level expect I phone 13, but right now am not happy. First time my phone shows the network issue and need help with apple care and engineers check and told your I phone net work sensor is failed and only the solution to replace, but my warranty finished just two month back. Ok, only the solution to replace but am checking your replacement coast of Indian RS. 43500/- am very much disappointed this product while using this.

thank you apple,