I purchases an item but I return the item back now I have my refund in my card but I destroyed my debt card because I had no use for it what do I do to get my money back

Ask for a replacement of the lost card. See this FAQ

https://ttlc.intuit.com/community/refunds/help/how-to-get-your-tax-refund-on-a-turbo-prepaid-visa-card/00/27310

For help with your pre-paid Visa card:

Call  (888) 285-4169

There is a “Help” link in the top corner of the web site for the card:

https://www.turboprepaidcard.intuit.com/