POOR SERVICE AND UNSRESPONSIVE ACT

I was ****med R5000 at STD bank ATM. On reporting this incident Std Bank requested call records for a month from 05/07/2022 to 05/08/2022 for Cell number ***. As from the 18th August I've been requesting these records from MTN. I visited MTN Vincent and Hemmingways East London and I was told that they cannot assist because the number is on prepaid, stating that if it was on contract they were going to assist me. I called MTN customer care and they said I must send an email which I did. When I made a follow up they said I was suppose send an SMS to 30988, which I also did. But up until now I didn't receive any response. Please assist. My name is Fundiswa Mahlati cell number *** and ***.