Norwich City chief executive David McNally has vowed to make the Canaries a permanent Premier League outfit.
City ended a six-year absence from the top flight with a on Monday.
"The fans deserve every bit of this enjoyment they're getting now and we're going to stay in the Premier League too," McNally told BBC Radio Norfolk.
"They're going to have to get used to Premier League grounds, we've got there now and we're going to stay there."
The Canaries made the most of Cardiff's defeat by Middlesbrough earlier in the day by taking three points at Fratton Park, putting them in second place in the Championship and four points clear of the Welsh side with one game to play.
Norwich's last foray into the top flight lasted just one year when they were relegated in 2005l after going up as Champions.
Since then the club has made a concerted effort to stabilise its finances and has bounced back from dropping down to League One.
Now they will receive an estimated £42m windfall for joining English football's elite.
"We were close to administration in the autumn of 2009, we've never had any money, we're not going to know what to do with it," joked McNally, who is a former managing director at Fulham.
"It's a quality problem to have and I jest because we know how we need to invest in order to stay in the Premier League.
"It's the best league in the world, Norwich City and its supporters deserve to be in the best league in the world, and every waking breath will now be focused on staying in the Premier League."