Some Millers fans reported on social media site Twitter at waiting over an hour to get their tickets from the club shop, with supporters keen to claim a seat for the upcoming League One campaign.
The Millers had sold over 3,000 season tickets in the renewal period alone, which ended over the weekend.
If you've not yet renewed your seat from last season then hurry, as someone could snap it up.
Fans also have until the end of the month to take advanage of the interest free direct debit scheme. See the link at the foot of the article for all the prices.
Aswell as renewing or buying tickets, copies of the Ronnie Moore Years Impossible Dream book and also the new grey away strip sponsored by TGB Sheds are also available to purchase now.