...it was indeed £25.
...correct!
....oh sorry! I did my reservation last week via the app for IUP, but when I got there, the guru asked if I was gonna pay up front or use either IUP or IP. He then proceeded to explain the terms of each one and I chose from there. I'm quite glad I chose IUP and have the included Apple Care as well (think it only includes 2 free accidents with an excess of £25 but I will need to read the terms to clarify)
...actually I did have a sales guy instead of a guru so perhaps he was mistaken!!
...hmm, it was a Belkin one which they applied in store however, the one they applied to my 8 Plus is slightly different to the one you linked to:
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