Hello everyone

After visiting a relative, I have seen a bunny kept in housing, in the neighbouring garden, which I think is wholly inadequate, a very small hutch-like wooden building, which at a distance seems like it measures at most 3ft x 3 ft, not enough space for the rabbit to get any exercise in. I didnt actually see the bunny but my relative assures me she has seen the rabbit inside the hutch. What should I do, ring the rspca.