Unable to fulfill request

In October last year we opened a new business. At the time our credit card machine was placed under our old business. However, in November when business had settled we requested them to separate the two machines. For this a new bank account was also opened for the new business. However, it is now 3 mnths later and the transactions at still going into the old account. We have consulted with the banker at Nedbank but this doesn't seem to be working. It is highly frustrating.