Bankers and banks have a GOD syndrome.
Whether it be for a small genuine enhancement, a small service, or god forbid a favour, they will make sure you know that it is a big inconvenience you are causing them.
It is not that you are trying to avail the advertised service but rather causing them a personal burden.
As such, it is imperative to write to RBI, nodal officer, or anyone else to get your query resolved. I have faced the same issue when the bank stopped responding to my queries or providing any help until I wrote to the RBI Ombudsman.
That too in a serious fraud issue and when I am an Imperia customer and all that.
In my experience so far, it matters very little if you are a premium customer or not. It doesn't matter which bank. All that matters is a personal connect with bank's personal.
Approach/Jack/jaan paechan whatever you want to call it. If this is what is required then what is the path forward for the common people?
This structural approach is the best approach. The only thing is the lack of accountability. Just like our court system, if we do not fix accountability at the lower rungs of the system(branch, nodal, etc.) then everything would go to the Supreme court(RBI.)