ALBANY, N.Y. (NEWS10) — It has been four days since the start of mobile sports betting in New York. On Saturday, according to marketing company GeoComply, 5.8 million people made transactions. Sites seeing massive activity offered many reward promos to draw in customers, but one local man ran into an issue.

With so many people using mobile sports betting, some hiccups were expected by sites like DraftKings New York, FanDuel New York, and BetRivers New York. Jeremy who gambles for fun, said he encountered a problem with Caesars.

“They put this massive bonus out there,” he said. “You deposit $3,000 and they will match that with $3,000 and $300 bonus.” Jeremy said that, according to Caesar’s website, the match deposit of $3,000 was supposed to go into his account after 48 hours.

Three days later, Jeremy still doesn’t have his bonus. “I followed all the terms and conditions and submitted the deposits,” he said. “I still haven’t received our match funds.”

Tom Reeg, the chief executive officer of Caesars Entertainment, gave an interview Monday morning to CNBC’s “Squawk Box.” In it, he said, “When you have massive demand, that’s when you see the pinch points in your system and, unfortunately, we had a couple and we did not have a flawless performance this weekend.”

“As a sports bettor myself, I know how frustrating that can be,” Reeg said. “I apologize to those that could not get a bet down for a brief period of time. “

Caesars also had an outage of two hours on the first day of the mobile sports betting launch. But so far, Caesars has not addressed the issue with matching funds.

Rush Street Interactive COO Mattias Stetz said it’s important to remember whether you’re a veteran or a first-timer bettor to read the fine print. There can be with-drawl requirements and other clauses that you should be aware of.

“It’s important to bet responsibly. This is entertainment, and you can have fun,” he said. “We will have some interesting promotions in the playoffs.”

The New York State Gaming Commission says the issues may be related to the volume of people signing up. They plan to have the numbers out this week on how many people played and how much money was won.