@Betty5050
The self serve accounts have a caching problem. Try clearing your browser and close it. Reboot your device. Then log in using secret/incognito mode. You should then see an updated version of your account with your redeemed 1gb data add ons. Point redemptions are normally almost instantaneous in your account but pm does say they could take up to 48 hours. I think this refers to the delay when a new points account is set up and less so to do with redemptions.
As @pmbc has suggested if you see the redemptions in your point rewards account's redemption history but not in your self serve account once you have logged in using secret/incognito mode then follow their instructions on how to contact customer support.
You may find the following thread about the Public Points program helpful for reference. Please feel free to add any personal observations about the points program to the thread as many regular community members are on the old $$ rewards program and do not have personal experience earning or redeeming points.
https://productioncommunity.publicmobile.ca/t5/Get-Support/Public-Points-Rewards-Tracking-points/m-p...
https://productioncommunity.publicmobile.ca/t5/Get-Support/Point-Redemption-Bill-Credits-Account-Rea...
