There's really no way assist as this a peer to peer community. We don't have all of the details concerning your account or the sender's account. Depending on your account status is a factor - is your account "verified". Depending on how the transaction was handled is a factor - did you send an invoice or a request for "goods and services" or did the sender just use the send money feature and selected "friends and family". If you account is unverified, you have limits on sending, receiving and withdrawing funds. Meaning PayPal can hold your funds up to 21 days. There's various things that can affect how long it takes to release the funds.
Note, if the sender used the send money feature and selected "friends and family", technically, you don't have proof of a sale which in turn can set you up for a scam. All we can do is toss some thoughts out there.
