Immediately after booking a January 2023 holiday I received threatening emails demanding the balance of the holiday be paid in full or all monies already paid could be forfeited. The first time I called to query this was over the weekend and customer services are closed. When I tried on the Monday morning - following the automated prompt for the payment option - the recorded message instructed me to go online for all payment matters and cut me off. Eventually after choosing another option I was able to speak with an adviser. She informed me that emails are automated and stop once flights are confirmed. Sadly she seemed to miss the point that threatening emails are distressing and unprofessional!