Log in to my Amazon Seller Central UK account and offer free shipping for all of the products in my inventory

I will give you the login details for my Amazon Seller Central UK account. You will sign in, locate every SKU in my inventory and make sure each one offers free shipping on domestic (UK) orders instead of the "+ £4.48 delivery" it is currently showing... (Budget: £10 - £20 GBP, Jobs: Account Management, Amazon, eCommerce, Inventory Management, Logistics, Shipping)