Is it true that you received a 6-day and 5-night double tour in Yunnan from Shenzhen Travel Agency?

I also received it recently. I'm calling for advice. The landline phone was turned off twice, and 400 calls were answered manually. Call me at the last cell phone number and tell me that it really works. The value of the coupon is 3658 yuan. Although the details of the above expenses are quite clear, it is not clear whether there will be a hole in the self-funded part of the tour group led by the tour guide. It was supposed to be used for traveling next year. But when I saw so many people on the Internet saying that the tour guide would take you to the shopping place to shop at their own expense, they wouldn't show you around when you bought something, but just rested in the same place, and I was scared in an instant. I'm still hesitating to use that coupon.