Someone's onto you, Receiver. This Bearer is well aware of whatever you may be up to - or thinks so, at least. Whilst they may have a certain amount of guarded admiration for your dedication, ingenuity, or sheer chutzpah, they nevertheless feel it important their recognition be considered.
Receivers perhaps wishing their machinations had not been uncovered can apologise with Sorry, proclaim innocence with Who, me?, underline the potential value of their failed venture with Worth a shot, or express regret with Regret, while those grateful for the acknowledgement can say so with Thank you, and any feeling such acknowledgement somewhat tardy in arriving can point this out with About time. Let's pretend that never happened proposes both parties agree to pretend nothing ever happened – although to what extent such decisions are a solution is a moot point.