Realistic/fair compensation for misadvertised activity

[Traveler718]

On a recent trip, I signed up for a via ferrata climb up a mountain that was advertised as lasting 4 hours. Because one of the attendees was running late, it didn't begin until about 2:20 PM, rather than the scheduled 1:30. 

Shortly after we started, the guide said that we would have to rush through the course without any breaks or photo ops, because if we didn't finish before 4:15, we wouldn't be able to take the ski lift down the mountain and would have to do a long hike down.

We did rush through and finished at 4:05 and took the ski lift down, but instead of a 4 hour leisurely and enjoyable activity with snack breaks and photo memories, we endured a 1:45 boot camp that left me drained and exhausted.

Simple math also reveals that even if we started on time at 1:30 PM, we still wouldn't have had 4 hours if we had to make the last lift at 4:15, though when I called to sign up, they said that the morning and afternoon tours were identical in length.

Frustrated by the experience, I went to the company office afterward to complain, only to find it empty, so I decided to dispute the charge on my credit card (Chase, not AMEX if it matters). In my mind it was a mekach ta'us that was nothing like what they advertised, and I would not have signed up had I known that it would be like this. I also left reviews on Google and TripAdvisor sharing my experience.

The company CEO responded to the chargeback by emailing me that I shouldn't be entitled to any refund since I did complete the activity, but if I take down the negative reviews, they will give me a 50% refund plus a voucher to repeat the course with VIP treatment on a future visit (which I have no intention of using).

I was obviously hoping for more and don't understand their position that I'm not entitled to any refund since I ultimately did the course, but since I'm noge'ah b'davar, I figured I'd reach out to ask what's reasonable and fair compensation in this situation. I also don't know how likely Chase is to side with me if I leave it up to them, and then I could be left with nothing. Any thoughts or advice?

[whacked1]

I didnt see the ad.

However, if someone advertised that they were taking you up the mountain and took you up the mountain, albeit it went faster, I believe 50% is more than fair and generous (especially since you were offered again to do it for free). 

[CountValentine]

Counter their offer with what you think is fair.

[tzifanya54]

On a recent trip, I signed up for a via ferrata climb up a mountain that was advertised as lasting 4 hours. Because one of the attendees was running late, it didn't begin until about 2:20 PM, rather than the scheduled 1:30. 

Shortly after we started, the guide said that we would have to rush through the course without any breaks or photo ops, because if we didn't finish before 4:15, we wouldn't be able to take the ski lift down the mountain and would have to do a long hike down.

We did rush through and finished at 4:05 and took the ski lift down, but instead of a 4 hour leisurely and enjoyable activity with snack breaks and photo memories, we endured a 1:45 boot camp that left me drained and exhausted.

Simple math also reveals that even if we started on time at 1:30 PM, we still wouldn't have had 4 hours if we had to make the last lift at 4:15, though when I called to sign up, they said that the morning and afternoon tours were identical in length.

Frustrated by the experience, I went to the company office afterward to complain, only to find it empty, so I decided to dispute the charge on my credit card (Chase, not AMEX if it matters). In my mind it was a mekach ta'us that was nothing like what they advertised, and I would not have signed up had I known that it would be like this. I also left reviews on Google and TripAdvisor sharing my experience.

The company CEO responded to the chargeback by emailing me that I shouldn't be entitled to any refund since I did complete the activity, but if I take down the negative reviews, they will give me a 50% refund plus a voucher to repeat the course with VIP treatment on a future visit (which I have no intention of using).

I was obviously hoping for more and don't understand their position that I'm not entitled to any refund since I ultimately did the course, but since I'm noge'ah b'davar, I figured I'd reach out to ask what's reasonable and fair compensation in this situation. I also don't know how likely Chase is to side with me if I leave it up to them, and then I could be left with nothing. Any thoughts or advice?

I think 50% is fair under the circumstances.