Can My Manager Go To My Second Job To Verify I Was Out Sick?

A question for Ask the Workplace Doctors:
Can my manager come to my second job to check on me, when I’ve called in sick? 

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Question: 
Hi, I currently work 2 part time jobs in two different stores in the same shopping center. I have had problems with one of the stores ever since I joined. They waited to pay my September’s wages all the way into December. Then, they messed up my December’s wages and I wasn’t paid until in January. My bank has been overdrawn and I couldn’t even buy any of my parents or friends any gifts, which ruined the whole holiday season for me. They also haven’t recorded the overtime I have worked for previous months, so the store manager had to check CCTV footage to see when I was in, to rewrite any overtime. This was also paid late to me. ( I will call this store, Store A). The second place I work is much more professional and I have not had the slightest problem or worry about anything and they treat the workers like royalty (I will call this store, Store B)

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