Internet banking looses R2000

Made a R2000 payment on a beneficiary I paid successfully many times. Got the proof of payment, but the beneficiary did not get the money after checking his statement and with his banker. Nedbank is not interested in tracing the money and says I must present the proof of payment. They said she can log a call but they will tell me the same. So the money is lost and Nedbank lost it and does not think it is it's responsibility to find it. Be very careful when paying with Nedbank's internet banking. Nedbank, you better find the money or I will go to the ombudsman!