No
problem mate. The procedure for sending them back is included in the reply from Goodyear. I have attached the relevant section. If you want a full copy of the e-mail please don't hesitate to ask.
"We offer a tyre inspection service for any tyre dealer or member of the public".
"Vehicle main agents and tyre dealers can send tyres back for inspection if they have an account with us. If they do not have an account the return can be made through their wholesaler who will then arrange to return the tyre here on their behalf. With regards to returns it is always best to give the product to the person who took your money for it when new. This best covers you under the sale of goods act".
The place thats fitting my new tyres said they have an account so should be fairly straight forward.