The defective product was returned to the store.
I want a refund because the product is defective.
Unfortunately, the product arrived in a defective condition, and I am unable to use it.
I also want compensation for the additional costs I incurred because of this defective product.
I had to spend additional money on making alternative arrangements because of this defective product.
This product arrived in a defective condition, and according to consumer protection law, I am entitled to a refund.