Dunno about GP but I had a similar experience with Lyft, which had to do with the type of card I registered to Lyft. I don't remember the specifics but my case

Dunno about GP but I had a similar experience with Lyft, which had to do with the type of card I registered to Lyft. I don't remember the specifics but my case wasn't particularly weird… I was using an EU mastercard of some kind and they decided it was a bad one so they banned me. This all happened without ordering a ride. Had a similar experience with Uber, except that Uber actually eventually fixed it. Lyft was… unhelpful.