Constant problems with front door that was replaced by Anglian windows. Yesterday (Sunday) lock it became impossible to fully lock our front door, which opens directly onto a busy London street, leaving the household vulnerable and invalidating household insurance if we are burgled. No help or customer service available to speak to, all phone numbers lead you back to an online form. 24 hours later, emailed to say a technician will be in touch, now end of the working day and no contact has been made despite us stating the urgency of the problem. So we have another night of being unable to secure our home. Disgraceful!!