incorrect contact number

I called Nedbank to find out the excess bond amount and for account details to make extra payment , I was told to confirm an sms. I never received an sms. only to find Nedbank has incorrect cell number on their records. I asked the consultant how is that possible because I never used a 073 number and always used 082 number and that I get communication from Nedbank all the time. The consultant told me that Nedbank does not send sms. I then asked him why do I get sms from Nedbank advising me that debit order will go off on the 23rd if the 25th falls on weekend? he didn’t have answer to that....so Nedbank please correct my cell number I use same cell number I used since 2007. so if I get sms from you then why do u have wrong contact on my account. I refuse to go to a branch for an error that was made by you guys....you think a person has nothing to do but go to branch each time a consultant can’t fix problem on your system....it’s your fault you fix it.