Product: Credit card

In short, I believe XXXX ( or more ) " XXXX Credit Card Accounts, '' issued from BOA years ago, have been destroying my credit rating XXXX. XXXX XXXX XXXX - XXXX AZ XXXX XXXX, XXXX XXXX XXXX XXXX XXXX XXXX. XXXX XXXX XXXX - XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX *both XXXX & XXXX were mailed to old/incorrect address, were supposed to have been cancelled and new cards were issued that we used. they incurred annual fees automatically but were never paid resulting in late fees/charges/ XXXX. Personal XXXX ( XXXX ). See below for full reference. Was active paid off in full. cut up card. went into defa I had/have a number of different credit card accounts with Bank of America ( background : was doing property renovations in XXXX real-estate market - " fixing and & flipping SF homes '' ). Although we had XXXX very successful, small apartment repositions XXXX XXXX XXXX XXXX XXXX XXXX we also purchased over XXXX single-family homes near the end of a bull market. In any case, we had about XXXX different project co 's with bank account & credit cards - that was personally guaranteed by ( SSN *********** ). 
In any case, given poor timing/market cycle the house-flipping biz did not end well in XXXX and I got stuck with credit card debt. I 've always had great credit, as I 've been banking personally with XXXX XXXX since XXXX. My credit score was always over XXXX and I wanted to keep it up - so I kept paying down the biz debt each and every month with payments at/ & gt ; minimum. Recently, I found out to my horror and shock that my credit score had dropped to ~ XXXX. 
Note : I was not actively using any of these corporate cards, given the XXXX partners had dissolved the partnerships. 
The BOA letter re cc account XXXX ( below ) relates to the above letter and I called BOA to find out why they cancelled this account. I was totally shocked, given I had been making all these corporate debt payments each and every month ( I kept track of these in a detailed spreadsheet ). 
What I learned was that a PERSONAL XXXX XXXX XXXX XXXX credit card account - that of XXXX BOA XXXX account ending in ( address : XXXX XXXX XXXX, XXXX, XXXX XXXX XXXX ) had gone into default due to lack of payment. I found this outrageous, as I had completely paid that card off to zero balance and then cut up that personal credit card. I was told that it had an annual fee that was automatically charged to the account. I understood that, but I had NOT received any email or phone calls or mailed correspondence alerting me to a positive balance, late payment of alert of pending cancellation/default. Due to that ( unjust? ) event, BOA realized there was a XXXX card - and XXXX XXXX XXXX XXXX XXXX XXXX corporate credit card ( personally guaranteed by me ) and arbitrarily cancelled it - without any phone/mail notice to try to resolve the issue. I confirmed that they had the correct address at the time and phone numbers. ( Possibly related? - I have received calls from this number XXXX last couple of days, which, to me, seems like " telemarketer '' # *but they they NEVER LEAVE A MESSAGE!? *. Today, I decided to call them back and learned it was Bank of America cc division. ) For reference : The corporate entities and respective credit card accounts with Bank of America. 
- XXXX XXXX XXXX XXXX XXXX Co. 
- BOA XXXX XXXX CC Account : XXXX XXXX XXXX XXXX ( actual cc # : XXXX XXXX XXXX XXXX Exp XXXX ) - XXXX, XXXX XXXX XXXX XXXX ) - BOA XXXX Credit Card Account : XXXX XXXX XXXX XXXX ( actual cc # : XXXX XXXX XXXX XXXX XXXX XXXX ) - XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX