I sent a refund request and was accepted back in February, but never received it. I have not received the first and second payouts for the covid. What should I do?

What is a refund request?  You mean you filed your 1040 tax return? If you didn't get the first & second Stimulus payments it should be added on 1040 line 30 for the Recovery rebate credit.  What's on Lind 30?

You are not alone. Millions are still waiting. Turbo Tax only gives you an estimated date. The IRS usually pays most refunds within 21 days. But these are not normal times. This year is taking the IRS longer to send the refunds. There are millions more people filing returns to get the Stimulus payment.

See this news article on Refunds being delayed
https://www.msn.com/en-us/money/personalfinance/where-is-my-damn-irs-tax-refund-new-answers-emerge-as-delays-frustrate-millions/ar-BB1g54Ks?ocid=BingNewsSearch

Only the IRS can tell you. If your return was Accepted then check IRS Where's my refund
https://www.irs.gov/refunds/

When will you get your refund?
https://ttlc.intuit.com/community/refund-status/help/when-will-i-get-my-irs-tax-refund/01/25589

IRS - Questions about Refunds
https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions