unhappy with service delivery

I have sent all required documents wanted in order for me to receive my saving cash back bonus, but I have been send from one person to the other and the documents not received then they receive them late and all documents were send on time,<br> <br> last week Thursday the 10th September I receive an sms saying my funds has been paid into my bank account and will receive them within 48hours but it Wednesday and I haven't receive anything. when I call to find out what seem to be the problem im been told that they will come back to me but they are not.