Granted, the "nickel and diming" of hotline numbers (1900, 0900, etc) was nowhere as bad as today's cash shops, but a lot of us simply forgot they were always hungry for all our money
Here's a bunch other hotline ads for you to peruse - https://www.retromags.com/gallery/category/1729-telephone-hotlines/
PS: I never understood these american numbers that used letters, how were you supposed to know what was the actual number?
The only time I called a number similar was the one on the bottom of my NES or SNES to ask about a connector and what it was for... The guy said it was like a trailer hitch in case they wanted to make something to connect to it. To my country boy self, that made sense. I don't know if they ever used it.
That was there for a CD-ROM add-on, which was planned from the start but never actually released. Nintendo was working on it as a collaboration with both Phillips and Sony. After it got canned, both Phillips and Sony still had rights to some of the technology as part of the collaboration. So Phillips decided to release their own gaming system based upon what they had, and that was the (largely forgotten) CD-i system. And of course Sony did the exact same thing, and that became the Playstation. The rest is history.
After reading your comment I had to do more searching and I guess they did actually use it in America... For the bike that I never saw in person, made by Life Fitness.
Edit to add: Now I wonder if I'll ever find one now that I'm looking