Poor Customer Service

We have a club account and our signatories on the account have been changed as per a committee meeting. We are finding it impossible to action the change from the old to the new. We have tried to follow the convoluted requests but have reached dead ends each time we adhere to a new request. Each time we are assured we can change the signatories after we we fill this form in, etc. After visiting the branch in person the manager confirmed that we could update the signatories. We have been trying to change signatories since late last year. We have provided every document requested. When we try to contact Mr Mashaba the numbers ring through to the branch reception and Mr Mashaba was'nt available and did'nt call back after leaving a message. We have given up.