If the customer hasn’t paid for the product within half a day after ordering it, it is possible that he is still in the hesitation period. At this time, you should summarize the characteristics of the product in 1-2 sentences to strengthen the customer’s confidence in the product. For example, you can explain that the product is of high quality with competitive price, or that the product is popular, and you can also prompt instant payment. But be careful not to overemphasize it, so as not to offend the customer.
Dear Customer,
Thanks for your order.
The item you selected is a one with high quality / a most fashion / most popular one with competitive price. You would like it.
Since they are very popular, the product may sell out soon. Instant payment can ensure earlier arrangement to avoid short of stock.
Thank you and awaiting your payment.
Best Regards,
(Your name)