FNB debit order reversals NO assistance

I have been trying to reverse 2 debit orders since the 26th of February. When I call the debit order reversal number I always use, I some times hold on for 30 minutes and still no assistance. Yesterday morning I was on the phone for 37 minutes and still no assistance. Then I completed the debit order dispute form, sent it to 3 different email addresses that I was given, including the premier email address that assisted me the last time and no response. This morning I once again forwarded the emails for the fourth time. Can someone kindly just reverse these debit orders. PLEASE! Every month I have unauthorized debit orders going off my account and the struggle is real !!! I recently upgraded from premier to private but these debits were on my premier account. If it were on my private cheque account I would not be having these issues! Please assist!