Personal loan query not resolved and Consultant not providing feedback

I went into the Eastrand mall branch to enquire about the deduction of R3299.23 of my personal loan on the 1st of April. I requested a change (03rd or 04th of March) in debit order date from 25th to 1st as I resigned from previous job and was only going to be paid on the 31/03/2020. However the the lockdown and shutdown of office made that I get paid on 25th, but it was too late to change debit order back to 25th of March. I'm surprised by the high instalment increase and would like to revert back to initial date on loan agreement of 25th (Salary date) and R2943.75 instalment per month as my new job salary date is on the 25th as well. I was in contact with "Maphefo" from customer care on 01/04/2020 from the branch telephone and she had promised I will be contacted on 02nd once system updated with instalment. I followed-up on 2nd again at 12:50 as no call was received and still didn't resolve the query and promised she or Supervisor to call me back. As I could not be on hold for long while she contacting personal loans (already on hold for over 5 minutes and requesting more time). Can somebody contact me to resolve this query urgently. Laying this complaint is the last resort as all avenues were exhausted.