Unacceptable Service

I currently reside in Nigeria. I tried to withdrew R1300 4 times in a row on one day. I only received 3 withdrawals however my acc was debited 4 times. The Branch manager at the local branch confirmed this happens regularly and I must just wait about 2 weeks whereafter my account will be credited. This did not happen and I logged a query with Standard Bank in Nigeria on 16 Sept. Eventually they referred me to SA. In Oct I phoned Card Division and they said they will come back to me - nothing. I logged a complaint with Head office on 6 November and received no response. I followed up on 10 February still they are ignoring my query. I have banked with Standard for more than 20 years and this is how they treat their clients? My colleagues banking with Investec and FNB had their cards cloned and money withdrawn from their accounts and within 7 days their accounts were credited again! In my instance there was no ***** involved just not enough money dispensed and I have to wait 5 months for a response. No Standard Bank that is not customer service...... Just inform me if you will reimburse me so I can decide if I must change banks after more than 20 years of loyal support.