After our loan was sold to roundpoint mortgage company, we received a letter requesting documentation of homeowner insurance. We faxed the documentation to the number provided on the letter. We soon received a second letter requesting same. We re-faxed, emailed, and spoke with a customer service representative who assured receipt. We just got another letter notifying us of a charge of {$7200.00} to cover costs of insurance because we failed to provide documentation of insurance. 
