pay up
phrasal verb with pay verb uk/peɪ/ us/peɪ/ paid | paid
informal
（尤指不情愿地）付清欠款，偿还欠款
to give someone the money that you owe them, especially when you do not want to
Eventually they paid up, but only after receiving several reminders. 最终他们还清了欠款，但那是在他们再三收到提示信以后的事。