I also had a flight cancelled and got refund easy and quite fast considering the situation, also had good response from Easyjet refund to card for one flight and various vouchers for others which are more suited to me than refunds, Ryanair no refund just vouchers
So for customer service during recent times yes Jet2 have been alot better than others, but the question remains why still show full schedule with just over 3 weeks notice when knowingly that full schedule will not be happening and neither will it be with any airline