Able to Inputing log-in details, but Submit botton does not work while automated - cookies

Question

whilst the scrip below seems to work, it doesnt go beyond after introducing username and password, and clicking submit. Any idea why?
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait
import time
url = 'https://www.waitrose.com/'
email = 'email#gmail.com'
password = 'password!'
s = Service("C:/Users/mn/Downloads/chromedriver/chromedriver.exe")
driver = webdriver.Chrome(service=s)
wait = WebDriverWait(driver, 20)
driver.maximize_window() ## Maximize the window and let code stall
time.sleep(0) # for 0s to properly maximise the window.
driver.get(url)
Accept_Cookies = wait.until(EC.visibility_of_element_located((By.XPATH, "//button[#data-test='accept-all']")))
Accept_Cookies.click()
Sign_in_button = driver.find_element(By.XPATH, value="//div/a[#data-test='loginAnchor']")
Sign_in_button.click()
input_email = wait.until(EC.visibility_of_element_located((By.XPATH, "//div/input[#type='email']")))
input_password = wait.until(EC.visibility_of_element_located((By.XPATH, "//div/input[#type='password']")))
click_submit = wait.until(EC.visibility_of_element_located((By.XPATH, "//button")))
input_email.send_keys(email)
input_password.send_keys(password)
click_submit.click()