Liberty unhelpful, uninformed staff

Good Day PLEASE CAN SOMEONE ASSIST I HAVE BEEN TRYING TO CANCELL MY INVESTMENT BUILDER FOR 2 WEEKS NOW I ALWAYS GET SENT FORM TO CANCEL MY RETIREMENT AUNITY I DO NOT HAVE ONE I HAVE A TEMPORARY RESIDENCE PERMIT and can not work in South Africa and DO NOT have a SARS number as I can not work here PLEASE ASSIST WITH THE CORRECT FORMS AND CORRECT ADVICE Thank you Lydia