We were approved for a conventional mortgage loan this past Monday, and are closing on Monday. The bank that has been handling our loan has called several times before approval to ask my employer if I still work there. My paystubs don't actually say the name of my place of work, so I thought that could be why. But today, 4 days after approving the loan, they have called my work again to confirm my employment to which my employer adamantly confirmed I still work there. Is there are reason they would continue to do this, should I be concerned?