Bad Service

I took my phone the Samsung Service Center on the 11/11/15 at 09.48 for repairs with a intermittent fault on the phone. When the phone was booked in the Consultant confirmed that the fault was still present on the phone. Later the same day i received an SMS stating that my phone was ready for collection. i phoned the service center on the 12/11/15 at 08.15 to enquire as to what repairs were carried out, Tracy informed me that they could not find any fault on the phone. i informed Tracy that i was not happy the results and would like to speak to her manager Chris Bolton whom she said was busy with a client, he did not return my call. I phoned again at 09.15, 11.50 and at 13.40. It is now 14.30 and he still has not returned my call. Tracy was apologetic and tried to cover for him by saying that he keeps getting clients in his office. It appears that Samsung or Chris Bolton do not really care about their customers. Service Order No:***