A major coffeehouse chain is closing one of its high street branches this week. Costa Coffee in King Street, Maidstone town centre will shut this Saturday. The store located opposite Starbucks, announced the news through a note displayed on it’s doors. It read: “It is deepest regret that we have to inform all of our loyal customers that this store is closing.” “We have thoroughly enjoyed serving you all, team King Street.” The reason for the unexpected closure is not known. The note on the store says it will shut Friday, but a Costa spokesperson confirmed trade will cease Saturday. Until then,…