Student or Learner
Below is the mail I had sent you for the approval. You had given me approval on the phone for the same. we had proceeded as per your conformation.
Kindly let us know if you want your ad to release on coming Wednesday
I would only change a couple of things in this message:
Below is the email I sent for your approval. You previously gave me approval for it on the phone. We preceeded as per your confirmation.
Kindly let us know if you want your ad to run this coming Wednesday. OR Kindly let us know if you want your ad released this coming Wednesday.