Poor customer experience

Please could you assist me

I currently have a

32 fixed deposit and I am being offered 7.1% on this account as the balance is at the max threshold. I opened this account ELECTRONICALLY online last year.

Currently I see an advert for "AN ELECTRONIC 32 DAY NOTICE FIXED DEPOST" offering 7.5%

I wish to have my interest rate UPGRADED automatically WITHOUT having to go through the trouble of having to open a NEW ACCOUNT

I cannot get any assistance at BRANCH LEVEL of TELEPHONICALLY

I do NOT want to move my money OUT of NEDBANK but it appears the bank is being intransigent with regard to keeping me a happy client.