The 11th Champions League T20 match between Mumbai Indians and Highveld lions which was scheduled on September 29, 2013 is shifted from Ahmedabad Stadium to Jaipur Stadium. Now, Date and time will be same but venue is different. It's due to the heavy rainfall in Ahmedabad.
According to official CLT20.com post,
Spectators who had purchased tickets for the Ahmedabad game on 27 September can claim a refund from the Refund Counter at the Box Office at the Sardar Patel Gujarat Stadium, Motera, Ahmedabad, from 27 September 2013 to 2 October 2013, between 10:00 am and 6:00 pm. Refunds can be claimed only on producing a valid paid ticket. All tickets purchased through the internet will be refunded directly online. The Refund counter will not be open on the day of the double-header on 30 September.