Yeah I hate it when schedulers do this — just because I’ve done a shop before doesn’t mean I will again. I’ve noticed a trend that they are usually the harder to fill shops — which usually mean they are out of the way — and the only reason I did them the first time was because I made a route. No route? No re-shop... unless you want to make up with it with a super high fee.
That said, Mintel is the one MSP that can get away with this — they never “assume” things unless they include a hefty bonus for the inconvenience. When I’ve been “surprised” it’s always a great surprise. Those schedulers are absolutely amazing, and I’ve never had to haggle once.