Denied what I paid for

I took a 3 year service plan out with LiquidCapital to look after my car after it was out of Warranty.

I've not missed a single payment, however I was late for my third service, they simply said "nope can't help you". I've still paid for it? How does the timeline affect that fact?

They'll take your money on time, won't ever indicate when you need to go for these services and then hard deny you when they feel like it.

Rather save the money and service yourself.