This sound is from Cooperative Bank Lady Soundboard

Co-operative Bank Lady Soundboard. Co-Op Bank Lady is a British employee, named Sam, of a co-operative financial establishment who was called with the Chinaman soundboard by Channeltwentythree. Throughout this call, she constantly asked for an account number (pronouncing it “num-ba”). Due to Chinaman’s thick accent, she could not make out the questions to spell her name.