Shopify Store Sales Boost Campaign

I already run a Shopify dropshipping store that has the basics in place; what I need now is a clear boost in sales. The priority is marketing—specifically Facebook and Instagram ads—so I’m looking for... (Budget: £20 - £250 GBP, Jobs: Advertising, Digital Marketing, Facebook Ads, Facebook Marketing, Google Adwords, Instagram Marketing, Internet Marketing, Shopify)