KANSAS CITY, Mo. -- KMBC has learned the inside invitation list to buy advance tickets to the Billy Joel concert at the Sprint Center is larger than first reported.

Earlier this week, Sprint employees came forward with a memo saying they were offered a chance to buy up to eight Billy Joel tickets each before they went on sale to the public Saturday.

KMBC's Jim Flink reported that four corporations were given that offer: Sprint, United Missouri Bank, QuikTrip and the University of Kansas Hospitals.

On Wednesday, a Sprint Center representative said only one such pre-sale arrangement had been made. On Thursday, Sprint Center officials confirmed that there were four different arrangements.

The news comes after a controversy over the Hannah Montana concert at the Sprint Center. Thousands of parents were upset they couldn't get tickets because the concert sold out within minutes.

In August, an Elton John concert at the Sprint Center sold out in about an hour.

"I'm shocked -- I thought that we built the Sprint Center so that the public can buy tickets," City Councilman Bill Skaggs told KMBC. "It appears as though they haven't gotten the message down there that people are interested in transparency."

Sprint Center officials said nothing is awry and that these are normal concert promotions. Sprint Center said the public will get the lion's share of the tickets.

However, one UMB employee is already scalping his eight tickets on Craigslist for $130 each, which is $35 above face value.

"We may need to look at the scalping law that the governor just signed into law," Skaggs said.

Sprint Center officials said the pre-sale deal to corporate sponsors is a one-time-only deal and that no more than 10 percent of the house will be sold.

Another eight percent of tickets will be sold to so-called founder's circle members.

Sprint Center said there should still be 12,000 tickets available on Saturday morning through Ticketmaster.