ABSA DOES NOT SERVICE CLIENTS RE CREDIT CARD

Once again I have been **** to by ABSA.In Dec 2015 I queried a charge on my billings.I was told by ABSA that the merchant charged the incorrect amount.I did my own investigations including approaching the merchant who let me look at its records for which no such amount was found.ABSA still insisted merchant did wrong.I further found that a ******* file was sent to ABSA which ABSA accepted and processed which affected about 1000 customers.I am still waiting for ABSA to respond to me on this matter.This weekend my wifes credit card was declined and mine today.I went to ABSA and was told that the merchant selected chq or savings options which caused the card to be blocked.This did not happen since I always watch the merchant.The branch then called the credit card division and when I spoke to the division was told that there was a problem countrywide in that ABSA cards where being blocked i.e.ABSA systems had blocked the cards.So I was **** to again and poor merchant gets blamed again.ABSA is this how you provide a service to your customers?What do we pay fees for?At least banks like Standard,FNB etc send sms' and put out alerts in the media.I think I must move after 25 yrs with ABSA