Quite a good selection of quilt covers, most sold as a set with pillow case(s), for $49. Options available in all sizes from Single through to Super King - easy to search by size,
free delivery over $89, otherwise $10 update: thanks to @Avo below, use code 'SOCIAL' for free delivery for one set (orders over $35).
A few personally-selected examples:
Coco black king set (was $299.99, save 81%): https://myhouse.com.au/collections/49-king-super-king-quilt-...
Peta king set (was $269.99, save 82%): https://myhouse.com.au/collections/49-king-super-king-quilt-...
Bahama moss king set (was $229.99, save 75%):https://myhouse.com.au/collections/49-king-super-king-quilt-covers/products/bahama-moss-quilt-cover-set