All bookings are currently managed through the WeChat account "SITHC-SHHG". However, for foreign students who are new to Shanghai and do not yet have access to WeChat, an external mailbox has been set up to assist you. 

You can write to the customs office at shbjzx@customs.gov.cn. If you encounter any difficulties or have any questions, please feel free to call the service hotline at 021-62688851.

Source: International Services Shanghai (english.shanghai.gov.cn)   International Services Shanghai is an upgraded, multilingual portal for the Shanghai municipal government. It offers detailed policies, news updates, and useful tips for expats in Shanghai who are seeking information on business, employment, travel, education, or shopping.

I think maybe tou can register a Wechat account. That is not difficult. You can buy a Chinese phone number first. Hope it helps you out.

My suggestion is that you can download wechat first. If you really can't download Wechat, you can ask your Chinese friends or hospital volunteers for help.

Maybe you can go hospital directly, you can book check there, nurse can help you. Somewhere have automatic machine, you can book by yourself. But maybe should stand in line when you book, but you also should stand in line if you book online. 

You know, things in Shanghai are quite expensive …even though I'm not living in Shanghai, I heard about it before.