My unpaid time off request for my cousin’s wedding was fucking denied.

I asked long ago to get the day off for my cousin's wedding and yet the manager is still making me work that day so I will just call in sick and I don't give two shits if I get written up for this as family comes before work and to make this situation even worse I work literally barely minimum wage which still feels like minimum wage since its only 2 dimes above minimum wage and I work the worst position in the store.