State Bank Of India [SBI] — Delay in ECS credit

Address: Hyderabad, Andhra Pradesh, 500033

This is regarding delay in ECS credit with SBI Maxgain A/C.

I have taken a loan of 45 lakh from SBI under maxgain. My ECS is schedule on every 5th of the month, so every month ECS is debited from my HDFC bank on 5th but it is not credited on same day to my SBI maxgain A/C
I have contacted to SBI many time but as per them there is a manual process is required so there will be delay in ECS credit.

Please find the delay in days for respective months

Jan 17 - 1 day delay [ECS got debited on 5 Jan 2017 but credited on 6 Jan 2017]
Feb 17 - 1 day delay [ECS got debited on 6 Feb 2017 but credited on 7 Feb 2017]
March 17 - 8 days delay [ECS got debited on 5 March 2017 but credited on 13 March 2017]
April 17 - 2 days delay [ECS got debited on 5 April 2017 but credited on 7 April 2017]
As per RBI guideline Amount should be credited on same day but it is not happening with SBI.
I want refund for all my interest charged due to late submission of ECS to my A/C.
SBI MaxGain A/C : [protected]

IFSC code for my branch : SBIN0004187