Surely the problem is resolving itself, a week ago, rode in a minicab, the driver had queued for 3 hours only to be rationed to a purchase of £25 .
At 07 30 am , walked past my Tesco petrol station (London) 16 pumps, it has a near monopoly in the area, all the rest closed down for housing development, 16 pumps and only 8 cars prrsent, all filling up or paying,, both grades of petrol , diesel all available, no queues or rationing.