please help me edit my letter

[rita198529]

appreciation of approval of quote

Dear kwesi,

Thank you very much for the approval of the quotation concerning 10 boxes of book we sent to you.
we will do well to supply in a maximum of ten working days.

Best regards.

 

[Tarheel]

appreciation of approval of quote

Dear kwesi,

Thank you very much for the approval of the quotation concerning 10 boxes of books we sent to you.
You should receive them within a maximum of ten working days.

Best regards.

I am assuming that the books have been sent but haven't been received yet.