Deductions & credits

I have an original loan started in 2016 greater than $375K.  Ist loan was sold in March 2020 to Company B.  I refinanced in April 2020 (company C) and again in October 2020 (Company D).  I have Four (1098s).  Turbo Tax says to combine the loan and put them on one line.  I paid $15K in interest and it is limiting me to ~$7300 deduction

 

Questions is what do I enter.  What company name?  Turbo tax states to get a calculator and add all the interest together.  I have no points paid.  What company name do I use?  Just A or ABCD or two line lines with AB and CD companies together.  Instructions are confusing.

 

Any help is appreciated.