There's no issue with a non-free API, the issue is the pricing they've decided on and the timescale they've given to adopt it. 30 days notice isn't long enough

There's no issue with a non-free API, the issue is the pricing they've decided on and the timescale they've given to adopt it. 30 days notice isn't long enough to adopt a new pricing strategy, especially one so unreasonably priced.