I'll get you the number of the one my sister uses in Nottingham.
My sister had a previous pet sitter who she sacked. She came back from a week's holiday to see all the food for her cat, two chinchillas, two budgies and aquarium still on the table :shock: Her chins were out of food and water totally but were ok, her cat had luckily had access to the outside via a catflap so had self provided, her budgies were thin but alive but nearly all her fish were dead. On ringing up the girl (who had worked for the RSPCA) she said she hadn't realised it was that week, despite my sister ringing up the day before she left to check all was ok. She was left to assume the girl just forgot :evil:
Going on from that she does use another pet sitter but just gets a neighbour/family member to pop in after a day to check they've been. She also rings the pet sitter up midweek to check all is ok.