Angry, disappointed and frustrated

Disappointed, booked flights on the 17th May through Travelstart to PE for the 31st Dec 2021, paid and booking was confirmed with E-Ticket received.....Travelstart then cancelled the flight without contacting me (the cancelation was confirmed by BA this morning)....I am all packed and ready to fly tomorrow morning....what do I do??? I have whatsapped and logged my challenge online, no response coming forth as yet.....