Bad Service on Repair of phone

Good Day<br> <br> I booked in my Sony M5 smartphone as is is experiencing the sudden death problem. When you try to use it it has switched off and does not switch on again until you connect it to a charger for a minute. it was booked in the monday. I was told that they have to send it to Cape Town as it is a water resistant phone. On Friday i phoned to find out what the status is and was told they are not sure but it was sent to the supplier to fix. when i asked how long the lady told me they don't know and that i should phone directly, which i did. I was told that they have fixed the phone and will leave that same afternoon(Friday). I phoned this morning(local repair centre pe) and was told they received the phone but it failed their tests and was sent back to Cape Town. i aksed to speak to the manager and was told at 12H20 I must phone at 2PM because he/she is on lunch. What a joke, 1.5hours lunch? What nonsense is that? The supplier does half a job and mtn does better testing? If they are battling to fix the phone then it must be replaced! Really pathetic and once again customer is on the short end.