Hello Ian,
Pasali lang, that email your wife received on May 28 that you posted above is what we call the AOR. not everybody receives one. It just basically confirms that CIC received your application.
When your wife was approved as sponsor on June 7, in the email she received, she must have been given a file number in this format F0000***** . You can use that to log in ecas using your (applicant) details.
Your ecas should say "Application received" . Your ecas could also say if medical results were received, coz in my case I was able to see that on my husband's ecas even before PPR.
When logging in using your wife's UCI and details, her ecas should be "Decision made"- referring to the sponsorship approval. But under your name, it should be "Application Received"
You will get your own UCI number on the PPR letter and you can use that to log in ecas but for now you can use the file number.
Upon approval of sponsor, the file was transferred to Manila embassy, you will only know the exact date of when Manila received it on the PPR letter. The PPR letter is sent thru snail mail.
As a reference, you may see my timeline , I got approved as sponsor on May 1 and based on PPR letter, Manila received it on May 8. They sent out the PPR letter on May 10.
You may also see the January spreadsheet , link is on my signature below.
Best of luck! ;D
