I refinanced my home and chose to preserve my Home Equity Line of Credit with Bank of America. They advised we would need to process a subrogation agreement which would take XXXX business days. That fell within the close date of XXXX XXXX, 2015, so we proceeded to pay the fees and process the subrugation. Bank of America missed the deadline by several days resulting in my being charged over {$3500.00} in interest from the original mortgagee because we went well into XXXX before the refinance was completed. 
