I used to work for a Job Shop (or a consulting firm for some of you), they had sent me on a job where I worked for few months and quit that position but wanted to stay with my Job Shop and look for new contract, after two weeks of them searching for a new job for me and myself searching as well, I found a permanent position somewhere else and I resigned. My job shop held some of funds on my payroll and they want me to send them another resignation letter with the date when I quit the contract with the client (two weeks back).
My question is, can I legally sign a resignation letter with the date other than when I resigned ? Would it be called "falsifying a document", can I get in trouble for doing that in any way ?
Waiting for your expert opinions,