Need help for Teespring.

Hi there,
I have a store in Teespring with t-shirts. I haven't tried any paid marketing. I just need some sale to start paid marketing. I haven't got any sales yet. I have tried to do free marketing with Facebook, Instagram, Twitter and others. But my every account got blocked/suspended. How can I get some sales? I badly need some sale. Is there any free traffic source to do free marketing and gain some sales. Please help me to get some sales. Thanks.