https://surfcenter.dk/wp-json/wc-appointments/v1/slots?get_past_times=true&min_date=2020-08-04&max_date=2021-02-05&product_ids=6701

https://surfcenter.dk/wp-json/wc-appointments/v1/slots?get_past_times=true&min_date=2020-08-04&max_date=2021-02-05&product_ids=5670

https://surfcenter.dk/wp-json/wc-appointments/v1/slots?get_past_times=true&min_date=2020-08-04&max_date=2021-02-05&product_ids=554

https://surfcenter.dk/wp-json/wc-appointments/v1/slots?get_past_times=true&min_date=2020-08-04&max_date=2021-02-05&product_ids=71