Thanks but I tried GO today and they’re collect only plus they haven’t got any in my size within 300 miles!
Email their customer support and say you are interested in buying a pair but they are not in your size near you. Tell them which store has them in stock in your size and ask them if they can deliver them to your local store.
I did this last year and they were very helpful, they may charge you a "delivery fee" of maybe £5 but when I collected mine there was no fee mentioned.
You'll find that they would rather ship boots to your local shop and get a sale than them sitting in a store on a shelf unsold.