According to your description, it may be that you have opened some services or bound some software. I suggest you look at the address where you sent the message and ask which services you have opened and cancelled this service.
Telecom has reduced its price, and the mobile phone bill is only 30% off! 49 yuan charges 129 yuan, including 330 minutes of voice and 600M traffic, which can double the traffic 1 yuan! 69 Yuan Bao 189 yuan; 89 yuan package 289 yuan; 99 yuan bag is 329 yuan.
Please visit Anhui Telecom's online business hall for details.
Wish you a happy life! I hope my answer will help you and be adopted by you!