I expect the hotel is even more disappointed than you. Many hotels, even the big chains, are in danger of collapsing altogether. They hoped to open - but finance, staffing, infections, rules and regulations etc made it impossible for them.
Nothing is working smoothly at the moment and we just have to accept that. They needed to start taking bookings at some point - unfortunately it turned out that was a little premature - they didn't do it on purpose.
What is a reasonable minimum spend for an online grocery delivery??