Poor service

I am dissapointed with the Service and lies received by Standard bank. I app**** for a Limit increase on my credit card from R40000 to R50000. After standard bank reveiwed i was told that there was an account on my credit profile which showed in arrears that account was listed in error and was closed an updated at the bureau. I was told to come back once i have closed that account. Now standard bank sais again ive reached my limit this was not told me when i asked for the limit increase im a loyal customer and would like this reveiwed.