Good morning Carlo,
I'm Doug, and I'm very sorry to hear of your situation. My goal is to provide you with excellent service today.
If there is an error in the data, but they are hand processing the deposit, that suggests that the deposit was in deed posted by social security to the bank, but somehow the banks software didn't automatically post it to your account. Quite frankly, this sounds like as much a bank problem as a social security problem. Had it not arrived at the bank at all, then I would suspect the problem was with social security. After all, the only information social security needs to make the deposit is your bank's routing number and your account number. It really isn't complicated.
However, if you bank claims that it is a coding problem originating at social security, then you should notify social security of the problem by either calling 1-***-***-****, or by taking a copy of the letters to your local social security office and explaining the issue to them and giving them the letters so they can pass it on to the payment division to ensure that the deposit coding corresponds to what your bank and account number require for the deposit to post automatically.
You may reply back to me using the Reply link and I will be happy to continue to assist you until I am able to address your concerns, to your satisfaction.
Please be so kind as to rate my service to you. That is the only way I am credited for assisting you.
I wish you and yours the best in 2016,