Horrible customer service

Just tried to leave negative feedback and ebay says I can't for 7 days because global golf a power seller. I requested cancellation, of order, 5 minutes after purchase, this was 2 days ago and 2 days later ebay said I couldn't because the item is shipped. Two days later, today, I get a tracking number. Very poor way to do business just because global golf needs to move a club. Ebay customer service is no better.