Your lender's servicing company is likely not a lender. It would be best to call a direct lender such as Bank of America. We have had loans go through in as little as 7 days.
Banks can take 30days...
Direct lenders about 2.5-3.5 weeks.
Brokers about 10days - 3 weeks.
It depends on your credit score, loan to value, assets, and income.