Contact Centre - Nightmare to contact

I have now been trying to call the Nedbank Call Centre for 3 days, with no success. This morning's example is similar to all the other times I have tried.

Called the contact centre this morning - hung on for 15 minute before I got an agent. Asked for Nedbank Card ***** department, hung on for another 10 minutes - finally used "the leave a message and we'll call you back" option - pressed 1, got a message that the user's inbox was full and got disconnected.

Said them an email asking to call me back and supply them with my cell number.

Now get an SMS: Dear Client, we have received your query via call back and we have been unable to get in touch with you to resolve it. Kindly call the Nedbank Contact Centre on 0860 555?ffffc2?ffffa0111 ?ffffc2?ffffa0

And here's the kicker: My cell phone has been sitting in my pocket all day and hasn't rung once. So who did they try to "get in touch with" OR is it JUST A BIG LIE!!!