A “high-end” private members’ club has denied suggestions it will be a “late night party house” after winning approval to expand its hours of operation. Club Quantum is promising good “Wi-fi, coffee and cognac” when it welcomes members to its plush venue on the edge of one of the county’s most famous shopping streets in the coming weeks. The bar, which sits opposite the historic Pantiles shops parade in Tunbridge Wells, is housed within a block of 127 flats built to replace a rundown 1960s office block in the town centre. Business use was approved as part of the eyesore’s redevelopment but a c…