Have you tried to order it from Amazon?
I know this struggle. My town was put in Tier 4, and we're not allowed to get out of the house. Fortunately, I made food and medicine supplies on time, and now we're fine. Also, when it comes to cleaning supplies, I always order from this online shop https://www.clean4less.co.uk/luxury-toilet-roll-2ply-white-pk40.html. My friend recommended it before all this Covid story has started, and since then, we only appeal to this store. You can find here anything you need for a clean house. Also, if you bulk purchase, the price is lower, thus it's really convenient. Hope it will help you.
I wish I new about it in march. Anyway, good to know. Thanks!