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Generally speaking, most shops for meals cover reimbursement only, or sometimes a small fee such as $5-$10. It really depends on the MSC and the type of shop. If you are unsure, you can always contact the MSC. there is usually an easy- to find e-mail address.
If money is tight for you, look for more shops that don't require an expenditure. And, also, consider applying for a new card that has zero interest for a period of time until you can get established. I work with many companies and they have payment policies stated on their website, although some may be difficult to find.