I don’t know whether it works or not but you can try.What method please
My internet speed was 40MBPS.
Follow these steps.
1. Use Microsoft Edge browser.
2. Login at 8:00 MST.
3. Go to Complete Draft Application or Make online Payment
4. Quickly check all the details one by one. (complete within 10 minutes)
5. Go to final payment page (where credit card and preview option is there) Initially, it will show IQAS daily limit of applications for immigration purposes has been reached for today.... . But here is the catch, refresh the page 1 or 2 times (you will get same message of daily reach)
6. Now do final refresh at sharp between 8:14:30 MST (if less than 30 MBPS) or 8:14:40 MST (If 30+ MBPS), once the page refreshed, don't wait, just click preview and payment. Bang!! (Don't wait for preview file).
7. Don't forget to on pop up from the setting (Check Youtube).
8. Finally, another page will open, then you have 5 minutes for final payment.
9. Cheers!!!
In step 6 you can do refresh at different time if it’s not working like 8:14:20 or 8:14:25.
Use this this link to check time and seconds
https://www.timeanddate.com/worldclock/canada/edmonton
I hope this will work for you. All the best....