One thing that may seem insignificant

One thing that may seem insignificant is also quick follow-up, but there is nothing that impresses as much
as when a company submits an offer or a reply by return mail...

For me it is purely frightening to hear how some companies deal with this thing, to my great surprise, I often here answers
like "we are still waiting for a response from two companies' after 3-4 days!

In the case of rejection, and missed businesses, show the customer how sorry you are that you not get the joy of a new business
opportunity just with him/her.

Be almost gladder with a rejection than if you sold something to the customer! It can be difficult, I know.. but as I said,
patience produce results sooner or later.

If we show that we care, we will hopefully
have proved that we are worthy to help the customer later on!

There are many good salespersons that work well when everything is fine, but are bad at dealing with problems and complaints.
Helping a client with problems, and then solve it gets a picture of your capacity for more business in the future.