Unauthorised bank account opened !!!

I received an email on 11 April about viewing my statement for the month. I was alarmed by this and sent an email to *** to raise a complaint because I did not understand how I could have a statement and an account open without my authorisation. I only made a credit enquiry with them last year and did not proceed with it. Now I’m suddenly getting emails about a statement account. I escalated to their complaints department 13/04 and still have not received feedback. I was informed of a 6 - 8 TAT on 30/04. Their complaint acknowledged email does not even stipulate this TAT. I had to send a follow up email to get clarity on this. This is honestly unreasonable. I cannot wait that long to get this concern investigated and get a detailed response of what transpired with the information I provided when I app**** for credit. This raises a concern of whether accounts are created on unsuccessful leads. I want a detailed response on my complaint and spare me the short HP response. I’ve been waiting for too long for a detailed response !!! Do your clients wait this long to have their issues resolved ? Because if so? Your customer service is poor and your complaints resolution processes are poor as well. You create ghost accounts then take forever to provide an explanation.