State Bank Of India [SBI] — Cheque not cleared even after 15 days

Address:

Bangalore, Karnataka, 560043

I have deposited my cheque worth of 366, 880 in my sbi bank account(electronic atm kiosk. i have a receipt of my payment too) (account no:[protected]) on 17th october 2015 but its not yet cleared. i have been calling them but i couldnt get any proper answer nor a solution and finally today when i called them they are telling me that they couldnt find the details on their system. all these days they were saying that because of many holidays we couldnt clear it so it might take some more days but i was shocked that my cheque details were not even present on their system. i need my amount with interest. i have been saving little money in post office for years and finally i received a cheque from post office and i deposited in my sbi account. my brothers marriage got settled and i wanted to use that money for his marriage but i did not expect this from sbi.. my cheque number is 243820 i am 20 kms away from my home branch. i cant keep on going to my bank to find about it. im a teacher. please can you help me on this date:17/10/2015 time:9.54 am client number: [protected]