FurtherWith regard to your telephone conversation with Mr. XX two days ago, please find attached the offer you requested.
He talked with Mr. X and they agreed on one offer.Job, what do you mean by "the offer you requested"?
I assume that the offer was made verbally over the phone, The person who made the offer is now sending it in written form, presumably by email,Further to your telephone conversation with Mr. XX two days ago, please find attached the offer you requested.