The credit bureuas only store the information. They can not just delete accurate information. On a chapter 7 & 11 bankruptcy the bankruptcy itself under the public record section stays on the report for 10 years from the filing date. The accounts tht are attached to the bankruptcy will be deleted 7 years from the filing date.
The Fico credit score, owned by Fair Isaac Corporation, is seperate from the credit bureaus. So "FICO" only generates the fico score which 90% of the lenders use. When a creditor requests a fico score, the credit bureuas will transfer your account information onto their mathematical formula which in turn will generate a true fico credit score. The fico score will both look at the bankruptcy itself & the accounst attached to the bankruptcy.
The only time it is a double whammy, like you ahd asked, is if the account attached to the bankruptcy shows a 30, 60, 90, etc. late paymenst on it.
From what i am understanding, you have both a chapter 7 & a chapter 11 bankruptcy as well? Is that correct? If yes, then here is the best I can answer these if I am understanding correctly. An account should reflect off the bankruptcy that you have filed. For example if you have Bank of America as aprt of a chapter 11 then it should reflect the 11. If Wells Fargo was filed with a 7 then it should reflect a chapter 7. However I am not fmailiar with business bankruptcy's which are chapter 11's.
On the collection account, eben though ti is involved in a bankruptcy, the old creditor can sell the account to a new creditor. There is nothing that you can dispute about it. A collection account will fall off the report, I can not remember if it's 7 or 10 years. Always go by the bk filing date.
ON your last question there is nothing wrong with it.