You are keeping my money so i cant do business

I have a pocket pos device from Nedbank and a Nedbank account. I have been doing transactions on the device and the transactions does not appear on my bank account. I have lodged complaints and was made lots of empty promises. My last transaction was cleared on the 4 June 2015 and from 6 June until now no transactions is reflecting on my account meaning i am out of pocket to the amount of R27500. I can therefore do no purchases and losing business because i cannot do purchases because of lack of funds. This is hurting my business so badly as i am a new business and do not have any debtors or creditors except Nedbank.<br> <br>