With the old site you could see the codes in the Points History (Item and actual code). I actually thought the old limit was 10 codes/day, but when I checked my history I don't think so or if it was it came much later in the program. I don't know if I ever got more than 10 in a day often (a couple times with a large DMC order), but I had years of codes I rarely redeemed until Disney Movie Anywhere started in 2015. Once I started entering codes I went through my entire DVD and BD and pulled and input all the codes -- it took a long time
I looked at my history I downloaded before the site changed over last year and it looks like I entered exactly 40 codes on 2/23, 2/24, 2/25, and 30 codes on 2/26. I don't know if the site cut me off at 40 or I just got tired of entering codes, but it's a little odd I didn't keep entering them unless the site stopped me at some point -- close to 25000 points all at once. I didn't enter any more until August so I must have run out of codes.
I looked at my history I downloaded before the site changed over last year and it looks like I entered exactly 40 codes on 2/23, 2/24, 2/25, and 30 codes on 2/26. I don't know if the site cut me off at 40 or I just got tired of entering codes, but it's a little odd I didn't keep entering them unless the site stopped me at some point -- close to 25000 points all at once. I didn't enter any more until August so I must have run out of codes.