OBF on S6 and Service, Accounts incompitent

On 25 April'15 I went to go do an upgrade on my contract where I where it was noticed that accounts department did not update the payment I made & was told that I need to come back the next day as I will take 4 Hours to update. I went back on the 26th April'15 & still it was not sorted.A Gentleman at the Ablerton City 4U store assisted me after we had to phone around & after 3 hours we got this sorted but the sim swap could not be done so I had to wait until the 28th for this to be done. <br> I noticed that the battery was at 10% so I took a chance & started installing my Applications. When the phone was completely flat I charged it but noticed that the battery was only lasting 4hrs a day with minimal use. I took the phone back within my 7days and was told that the phones software needs to be updated & was sent to the Samsung store in Alberton City. Samsung told me the phone was faulty & that I should be issued with a new one. Vodacom refused & said it had to be booked in for Repairs.There was no Manager or Supervisor at the store to assist with this & now I still have not heard anything. Why should the phone. I asked for the owner of the store to Phone me but still no call received!