Ebay's new Payment System FRUSTRATED

I'm not too worried about my payments coming through in a couple of days, but why don't eBay give me the full amount? for example: If I received payments of $1,000 over a weekend, why then on the Tuesday you might receive a payment of $50, the Wednesday $150.00. So as you are selling more than what ebay is giving back...Who's holding my money?. If this continues at this rate and I have supplier to pay at the end of the month, ebay's reatining most of my funds I can't access?

 

Anyone else having the same problem of ebay not fully paying out?