Royal Mail Special Delivery During Strike Action

Here is the statement from Royal Mail regarding removing the guarantee and right to claim:

From Royal Mail:

On days when strike action is taking place:
We will deliver as many Special Delivery Guaranteed parcels as possible. We will prioritise and deliver as many Special Delivery Guaranteed items as resources allow. We cannot however guarantee delivery by 9am or 1pm next day, so we’re making changes to our delivery guarantee for items posted from Wednesday 23 November up to and including items sent on Saturday 3 December 2022. Customers will not be able to claim for delays to items during this period. Further information around how this impacts future strike dates will be communicated closer to the dates.
We will deliver as many Tracked 24 parcels as possible including prioritising delivery of Covid-19 test kits and medical prescription items wherever possible. However, significantly reduced resources mean there will be a delay to some Tracked 24 items during strike action.
On strike days, we will not be delivering letters (with exception of Special Delivery). Other items posted the day before, during strike action or on the days after any strike action will be subject to delay.