In your case, your courier may be sent to a sorting center or distribution center closer to Dongguan center, and then sent back to Huizhou recipients. This practice may be to improve the transportation efficiency of express delivery companies, shorten the transit time of express delivery, or to make better use of their own transportation resources.
Of course, if you have any questions about the delivery service of the courier company, I suggest you contact the customer service of the courier company for consultation and get more detailed and accurate information.