The “surf-edition” simply doesn’t work while surfing. Can Garmin fix this problem?

I think a surf watch that doesn’t work while surfing is a problem. The wave counting is simply a joke: you surf 10 waves and it counts 30 or 40... Same for wave speed: it estimates 2,5 km/h average wave speed... That’s ridiculous: you move at 2,5 km/h when swimming, not during a wave ride (usually 20-25 km/h). Moreover, there are no data about total distance paddled and the heart rate monitoring is quite inaccurate (Garmin says that wrist heart rate is not accurate while swimming ad suggests to use a chest-strap... very confortable while surfing!).

As i can read, every surfer that used this device experienced the same problem.  It’s incredible a brand like Garmin sells a product called “surf edition” that simply doesn’t work when surfin. Can you fix the problem or we have to ask our money back?