bad service from debt care division

i would like to complain about standard bank debt care division after giving my self a 3 month payment holiday for March April and May which was granted and confirmed by email to myself, for my loans and credit card instalments. yet to date have had none stop phone calls from the bank and lawyers asking to catch up my loans and credit card or make arrangements to make payment, i have emailed the debt care department with no luck or reply, all the charges for missing debt orders i have had to pay to keep my account from going over the over draft limit i have asked for these amounts to be paid back with no luck , just feel its really poor sevice as i have had had not issues in the past with payment holidays only this last one which was started in march , thinking its time for me to change banks thanks