Bank Of India — request to reduce rate of interest on home loan a/c

That i have availed home loan from bank of india in 2012 from branch code 5402 (Ghasipura, keonjhar, odisha). As per advise of bank i have submitted a request letter to reduce rate of interest on home loan and complied all the documentary requirements. I had visited to banks in may'2017 and fulfilled the requirements by submitting request letter. As my request was lying unattended i followed up regarding the status the bank told me to submit application once again and i did the same in jan'2018.
As the rate of interest is very high in comparison to other market alternatives, the bank itself advised me to follow the above procedures. Due to delay in responding my request i am suffering from additional financial burden in thousands of rupees.
That since may’17 i have been requesting my concerned branch to consider to reduce the rate of interest on my home loan by submitting a request letter as advised by dealing manager
In this regard i had lodged a submission to know the status on my request 2 to 3 months back as per advice of my branch again i had visited the branch on 25.01.18 and complied the entire documentary requirements advised to me (I e signed the form, application of mutual settlement).
At a nutshell, i have submitted request letter to reduce roi twice once in may’17 and again in jan’18 and completed all the requirements but till now i am not aware of the status
As a prolonged and valued customer may i request to attend my request at the earliest because i am suffering from high financial burden as compared to available market alternatives.