I am trying to write a letter to explain a situation about what happened between a person "X" and me in the past. The situation is like this:
I signed a contract, then X asked me to do additional job after that (both actions are in the past)
Now, I am trying to explain this situation by the following sentence, which I am not sure wether correct or can be improved. The sentence is:
When X asked me to do the job, I was already signed and submitted the contract.
Can you guys give me any suggestions
"I signed a contract, then X asked me to do [some] additional job (after that)"
"When X asked me to do the job, I had already signed and submitted the contract"