According to your description, please check according to the following steps:
1, first check whether your inbox is full and you can't continue receiving.
2. Try restarting your phone. See if it can be received normally.
Try to change the telecom card to see if it can be received normally. If it can be received normally, it means that it is a problem with the mobile phone card. Take the owner's ID card to the telecom business hall for a mobile phone card. If you can't receive it normally, take the purchase invoice to the after-sales service of your mobile phone brand and ask the staff to check it for you.
Anhui Telecom will serve you wholeheartedly, and I hope my answer can be adopted by you.
Telecom broadband speed-up is free, 4M to 8M, 12M, 8M to 20M, 20M to 50M. You can go to the nearest telecom business hall or call 10000 to speed up for free. Please visit Anhui Telecom's online business hall for details.
If you have any questions, please consult the staff of Anhui Telecom's online business hall. Wish you a happy life!