DabDab
Ah mud, splendid
There's a cat shelter up the road from us that has this policy. No cats to homes with dogs, at all, ever. Even in a house set up to allow the cats to have plenty of their own space and with a dog that is demonstrably cat-safe as there is already another cat in the house .found a similar attitude at the animal shelter we visited in S Devon.
as we were walking through we asked about a cat. (any cat) That was when we finally found a person who would actually speak to us. We were told no cats could do to homes with dogs. They had lots of cats but not a single one would be able to get on with a dog. No question as to how amenable the dog was. Dogs and cats didn't get on.
Strange we had managed 40 odd years with both species together.
I have rarely visited a more unfriendly and unhelpful place but it seems, from your comments, that other shelters may be like this.
Their only interest was in extracting a donation from us. They were quite happy to give us some of their time for that. Sorry but no way.
Many years ago we did manage to rehome a 'absolutely not for a home with any other animals' cat from the RSPCA. It was when Dee (now quite old) was about 1yo and the RSPCA were doing cheap, walk-in microchips. So we went in to have the dog microchipped, wondered around the cats while we were waiting and saw a big tabby cat that had been there about 9 months (he had been badly smashed up when the RSPCA got him and had ongoing medical needs). Only for a home with no other cats or dogs said the slip on his enclosure, but we asked about him anyway. They looked at the small dog and then said they would get the cat out so that they could observe the dog be walked past the cat. Dee dog duely stood in the vicinity of the cat, completely ignoring him, and wondering why a small group of people were staring at her. So we were allowed to take the cat, who was one of the cheeryist cats I've ever known, and lived a good life (with a variety of other cats and dogs) until he had a stroke and was pts age approx 13.