@Silversitters, just read your last couple of comments. Yikes. That’s not good at all. One of the quirks of THS Sit Cancellation Insurance is effectively 10 day maximum (US$1500 total max, US$150/night max). Though guess more days poss provided daily rate below max.
One of our cancellations occurred after the sit had commenced. We were onsite. After sit has commenced then Pet Parent cannot cancel housesit on system. But THS Member Services can action that. Screenshot seemed work for you. Out of an abundance of caution, we also asked Pet Parent to also expressly write message on THS platform that they wanted to cancel the sit.
You noted $rate doesn’t go far in SE UK. Curious if THS would provide some form of exception to 20-mile term so that you can secure lower cost alternative accommodation. No harm in asking.
Hope all works out for you.