SMS sent by Bank - they have no info

Ref ***7 Nedbank provided your bank statements for your credit application as per your consent. Please contact *** for queries. SMS received, I call to find out who requested my bank statements as it wasn't me. Call Centre tells me they can't see any information. Pretend to consult with her manager - I hold for thirty minutes. Then she comes back on line and pretends she can't hear me and says - I'm disconnecting due to no response. SHOCKING!!!!! Nedbank cannot tell me who requested my bank statements, i have not requested statements to be sent anywhere let alone given consent. Agent tells me no point in giving the reference number as they can't see anything. I ask why then send me an sms asking me to query and when I call tell me I can