====== Mystery shop ======
Every 4 hours, four different offers are available.
These offers allow you to acquire resources and gas pedals at a good price.

After validating the first two, two others are accessible: one via diamonds and the other via real money.

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===== Tips =====
It is possible to lock an offer to keep it for the next refreshments. To do this, you need to click on the small padlock at the top right of an offer.