Mortgage Company is foreclosing

I borrowed 159,000.00 from Civic Financial on what was prior my primary residence but placed a tenant in the property prior to originating the loan. The loan was for a business in NC that failed and the home is in Florida. I moved back to the home in Florida in Feb. I prepaid the mortgage 15 months in advance thru to June 17. I screwed up a payment for June and was immediately placed in Foreclosure. I was given notice by Civic to pay 1800.00 to cure the default but BSI, Civics service company refused the payment until I spoke with a dedicated person at BSI. Reaching that person the individual said that I now needed to pay 5800.00 and that the interest rate rate from 9 percent to 18 percent but that if I paid two months of my 1579 per month payments that my original mortgage would be removed from default and the interest rate would be moved back to 9 percent. I sent BSI bank checks but they refused them and mailed them to an old address even though BSI has noticed me at my Florida home.