Unauthorized credit enquiry by standard bank powercurve

There was an authorized credit enquiry done on my name on 9'May'2024. I did not apply for any credit nor did I give consent for any hard enquiry to be done on my name. Yesterday I spoke to my banker to help me facilitate downgrading my account to a lower tier (MyMo account), that's all. I downgraded because I have not used standard bank as a primary account for over 3 years. I was asked about my income during the call (gross, net, disposable), I gave that information under an understanding that the company is just gathering data. I was in no way giving consent for an enquiry to be done in my name. I did no apply for credit. and I need clarity on this. The hard enquiry was done by standardabnk POWERCURVE.