Will someone swindle and cheat in the name of Jiaduobao?

If the company is really contacting you, there should be no problem. At most, the actual treatment is somewhat different.

You might as well do this:

Call the company headquarters and ask for a comprehensive customer service or office phone number. I said I couldn't contact the person in charge of recruiting you in the company. According to the existing information, it is true that he can provide consistent contact information.

If you can't provide it, you may wish to ask to check whether the unit or individual responsible for recruiting you really exists.