I booked a flight from Olbia to MXP with Air Italy (connecting to a BA flight to London - there's the link!)

Air Italy sent me an email with the following info:StatusDepartureArrivalFlight durationFlight noCancelledOlbia - Costa Smeralda (OLB) 14/Jun/2019 15:10 Aeroporto Malpensa (MXP) 14/Jun/2019 16:20 1:10 IG135New FlightOlbia - Costa Smeralda (OLB) 14/Jun/2019 17:05 Aeroporto Malpensa (MXP) 14/Jun/2019 18:15 1:10 IG139

The new flight time meant i would have under 1 hour to re-check bags and clear security for my BA flight which i wouldn't risk. They are saying as the time change is less that 2 hours i have to accept the new flight, end of argument.

The email clearly says the flight has been cancelled and new flight has a different flight number so surely i am entitled to a full refund? I got a computer says no from their CS department, is this something i could argue through CEDR?

Any info much appreciated!

CM