how I put this text in formal language.

Hi, Mr Brown
Thank for your order which we got today. We will be sending out your order asap. At the mo we are waiting for some supplies to come in before we're in a position to send your order on to you. However, we do expect these any day now and will send your order on as soon as we possible can.
I do hope you'll understand our position. we thank you for your patience.

Yours
Sarah

Thank you for your order, which we received today. We will be sending out your order as soon as possible. Currently, we are waiting for supplies to come in before we're in a position to send your order to you. However, we do expect these any day now and will send your order as soon as we are able to.

I hope you can understand our position. We thank you for your patience.

Thank you,

Sarah.

Explanation:

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