Vodacom's unprofessional service to loyal customers

I have contract with Vodacom and wanted to open an additional line & asked them to increase my credit limit in order for me to open another line, waited FOR A MONTH for this process to take place and then was just told unfortunately we can't assist. This has been terrible service & I can't see any problems with giving me another line and also the whole month for this nonsense service. This type of service does not want me to stay with Vodacom.