The website uses the £ symbol on its website - meaning it may accept payment in this British currency.
https://en.wikipedia.org/wiki/Pound_sign
Payment · Payment Currency
Get access to data on 12,367,132 websites that are Pound Sterling Customers. We know of 2,000,001 live websites using Pound Sterling and an additional 10,367,131 sites that used Pound Sterling historically and 1,006,182 websites in the United States.
Get a list of 12,367,132 websites using Pound Sterling which includes location information, hosting data, contact details, 2,000,001 currently live websites and an additional 2,924,591 domains that redirect to sites in this list. 10,367,131 sites that used this technology previously and 1,006,182 websites in the United States currently using Pound Sterling.