I finally got this but it took visits to 3 UPS stores. At the first one, 2 days ago, the girl at the store insisted they don't take the get more card anymore. She said I could come back the next day and talk to the manager but she couldn't do anything. The "get more" signs were not posted - noticed this after visiting the other stores. (Montreal Rd near St Laurent)

At the 2nd store, yesterday, the guy at the counter didn't know how to enter it so I had to wait 5-10 minutes for the manager to deal with a shipping issue - then the manager told me this doesn't apply to retail purchases and told me to go to another store if I didn't like it. Nice attitude. (Bank St near Nepean)

At this point there was only one more store in the area I was driving through...so I went there and it went through without any hassle. I bought a roll of packing tape for $4 since I wanted to at least get something I'd eventually use. (Rideau St near Nelson)

Major PITA but at least it finally worked. The initial miles showed in my account last night.