Purchases lost after reinstall

I just had to factory reset my phone and reinstall the game. Although I tapped “Restore purchases”, nothing happened and my purchases are lost.
How do I get them back?

If they were slot purchases before patch 1.2 and/or gold purchases, we have to get you a refund for them through contacting support@shinyboxgames.com. Restore should work for everything purchased past 1.2 besides gold, gold is tricky.