ABSA home loans do not treat customers fairly

We were pre-qualified for a home loan that included a component for building alterations. It took ABSA 3 month of providing us the incorrect information and procedures before providing the correct paperwork to get access to a building facility. Needless to say in 3 months with to very small children we used our savings to start the project as we were told we have this building facility after getting our bond originator and the regional manager of ABSA, apparently, involved ABSA gave a long story why they will only release 50% of the facility and will provide up to a further 6 progress payments as we come to the end of the project but that only 1% contract price will be retained until all compliance certificates are provided and that we have up to 9 months to complete the project. Now as we are finishing and need to provide the contractors payment to be abel to get the various compliance certificates they are saying the remaining 50% will only be released once we provide all compliance certificates. If I could I would rate them lower