Did you respond to the Micro Payment?

Even if you did it takes about 5 days, BUT if you are a new seller, then you will have to wait in any case. There are many reasons why buyers may want a refund, and ebay does not want a new seller,  spending money and nothing to pay for a refund if required.

One of the conditions for getting money released early is a good track record, and a new seller has no record at all.