Some level of decline is to be expected, particularly if several hard inquiries were made in the process.
You should review your credit reports, which you can get free from the site below, for accuracy.
https://www.annualcreditreport.com/index.action
You might also want to check your credit score with Turbo --> https://turbo.intuit.com/
The Experian site below has further information.
https://www.experian.com/blogs/ask-experian/does-refinancing-a-personal-loan-hurt-your-credit-score/
