The latest AEON statement shows a 3% Quarterly Rebate ... and caused me to lose RM40 of rebate

My anniversary Date : 4 Feb
The 1st Quarter Rebate was calculated wrongly using 12-Feb to 12-May.
I assume the +1 day every quarter --> 4th Feb + (1 day x 4 quarters x 2 years)2nd Quarter Rebate has been "re-adjusted" to 13-May to 3-Aug
Wrong Calculation all these while !!!!
Q1: 04 Feb 2013 - 04 May 2013
Q2: 05 May 2013 - 05 Aug 2013
Q3: 06 Aug 2013 - 06 Nov 2013
Q4: 07 Nov 2013 - 07 Feb 2014
Q1: 08 Feb 2014 - 08 May 2014
Q2: 09 May 2014 - 09 Aug 2014
Q3: 10 Aug 2014 - 10 Nov 2014
Q4: 11 Nov 2014 - 11 Feb 2015
Q1: 12 Feb 2015 - 12 May 2015
Q2: 13 May 2015 - 03 Aug 2015 --- corrected now
Q3: 04 Aug 2015 - 03 Nov 2015
Q4: 04 Nov 2015 - 03 Feb 2016