SORN And Ctek?

[Yoghurt]

Hi Rob
It was this one https://www.tayna.co.uk/car-batteries/varta/e39/?gclid=EAIaIQobChMI2J_K6Pah6QIVmrh3Ch1xcw32EAkYASABEgLeAPD_BwE.
Saying that, the number on it is not the same but is what comes up when I type my Varta battery number 61216917884.
If its a good price I am wondering if I should get it now as my battery is so old.