Which of them is correct?

Dear Sir/Lady,

I would request you kindly to inform me, which type of these writtings is correct and has a meaning of appreciation from the communicator or audience:

" Regarding to our previous communication and negotiation, you will be highly appreciated to inform us the current status of this case for finalizing and settle up the account. "

or " Regarding to our previous communication and negotiation, I will be appreciated to inform us the current status of this for finalizing and settle up the account. "

Thanks a lot for your kind consideration and checking our grammer.

Best regards,

B. Saboonchi