"website shows free delivery until a…"

website shows free delivery until a postcode is entered and then its £10 supplement, even for mainland UK. Only majority of England is free, Cornwall, Wales and Scotland are not. I would expect the Islands to pay a supplement but not the mainland. False advertising to lure customers in with free delivery - not for the majority according to your colour map

"Lorry couldn't get down drive so had to…"

Lorry couldn't get down drive so had to use car to move 2.5 tonnes of slabs.

"Excellent service.prompt delivery."

Excellent service.prompt delivery.
I had one item to follow which came later.
Products were good quality and well priced.
I will order again from Paving superstore

"very helpful associate guided me…"

very helpful associate guided me through my order and answered all my questions!

"Competitive prices"

Competitive prices, but dreadful checkout experience.

"Very good service and quick delivery"

Very good service and quick delivery

"Easy to navigate website and order."

Easy to navigate website and order.

"Quick delivery"

Quick delivery. problem free . patio laid, happy customer

"friendly"

friendly, helpful phone staff

"We paid extra for pre dated delivery which was 6 days late"

We paid extra for pre dated delivery, giving a months notice. Two phone calls made , both replies were that paving superstore would look into why the slabs did not arrive on time. One said we would be phoned back, no phone call came. One said we would receive an email, no email received. Third phone call to paving superstore produced results. Slabs delivered 6 days late and I had lay off the builders till slabs arrived. Hence 1 star rating.
Paving slabs being laid now are of an excellent quality. Packaging excellent with minimal breakage. These would get 5 stars rating.