Thank Them, and Ask Them to Thank You _ must be sincere Money is often a touchy subject, so politeness about it is a good idea. Your clients are paying you money that they've earned with blood, sweat and tears, so let them know you appreciate it. You should also invite them to contact you if they have any questions and, more importantly, make it clear that you appreciate their present (and future) business. Some people also welcome testimonials; for example, by adding, "Let us know how we did. Write a testimonial and sent to... " If you're building your website's testimonials page or want to complete the feedback loop, this is a great way to get clients to give feedback on your work. If they have suggestions for making the process smoother, it's also a great opportunity for you to improve.
As mentioned for the quotation, the points to be included in the proforma are: 1.Seller's name and address 2.Buyer's name and address 3.Buyer's reference 4.Items quoted 5.Prices of items: per unit and extended totals 6.Weights and dimensions of quoted products 7.Discounts, if applicable 8.Terms of sale (include delivery point) 9.Terms of payment 10.Estimated shipping date 11.Validity date