The points can be delayed up to 24hours to add up on the account. Please refresh the app once and check if the points are reflecting.
All purchases amounts are capped at one per day. You will not receive the points for example if you make 2x 4.99 purchases on the same day within the same app.
Also, some purchase tasks can be to make 1 daily/2 total so if you make the same value purchase twice on the same say then the system might not add the points.
If you are still missing out on the points then please reach out through the in-app support with the purchase receipts so that we can help you further.