Historical clue formulations

• Not pay as one goes — 2025-03-21
• Not pay till the end, say — 2023-10-05
• Build up charges — 2019-12-11
• Not pay for each drink individually, say — 2019-02-26
• Be in the red for black and tans? — 2008-10-03
• Put off paying, perhaps — 2006-09-23
• Drink on credit — 1995-02-16