[Grammar] S did not... but...

[feedthebear]

I did not say thank you to him in person, but I wrote him a thank you note.

Can I express the same thing using:
I did not say thank you to him in person but wrote/write him a thank you note.

Which one is correct?

 

[Rover_KE]

wrote

 

[MikeNewYork]

I would rephrase that as: "I did not thank him in person, but I wrote him a thank-you note."