Charging a restocking fee is illegal, under consumer law. Using the title of 'Restore', could mean anything, and I would suggest that you find out what the retailer actually means by this term. The same thing applies about making an administration charge.
If the item appeared to be faulty, due to it making a noise, then possibly a failure of parts was in the making. If this was the case, then a full refund, replacement or repair was available for you to choose. If you chose to send the product back, because you no longer wanted that particular model or unit,and it was not declared as faulty, then that would be a different matter.