SBIcap Securities — improper handling of my mutual fund investment

I invested rs 5.00 lacs in icici prudential equity and debt fund through sbicap securities limited on 7-aug-19 with a request for monthly dividend payout.
When i did not receive the dividend for september-2019 i contacted sbicap and was informed that the dividend has been sent to my icici bank account. This was strange as the investment was done from my sbi account and as per the normal procedure the dividend should have been credited to my sbi account. A perusal of my icici bank account showed that no amount had been credited to my icici bank account either. When i again contacted sbicap they informed me that the dividend will be sent by cheque as the icici bank account particulars were incorrect. Please note that the icici bank particulars were not given by me nor was my deposit made from icici bank.
On 25th september, i received a pay order for rs 4854.55 with incorrect payee particulars. Since the cheque would have definitely bounced if i had deposited it, i returned the same to the senior executive of sbi cap along with a letter asking them to cancel the pay order and credit the proceeds to my sbi account. I received the amount only on 14-oct -2019 when it should have ben credited to my account on 5/6 sep 2019.
Sbicap securities has not compensated me for the loss of interest and mental agony i suffered for 39 days at the age of 89 years