Going by your feedback, you've only sold one item in the past six months and four in the past year.
You're going to be waiting for quite a while.
This is a Buyer Protection policy.
Sellers have their cleared payments held for 21 days if they are selling in high value/high fraud categories, if they have violations , and if they have a limited record of successful transactions.
They've got you on the last point.
Your selling feedback for the past year is four positives. You don't even have your Detailed Seller Ratings showing yet. You won't until there are at least 10 in 12 months.
For what it's worth, you can still print your Paypal shipping labels from the Held funds. Since you seem to be using parcel services this may save you between 5% and 18% off PO counter prices.
