After reading the title but before reading the OP, I thought it was going to be about that strip on This Morning where (a decidedly aged and dodgy looking - yeah, never liked him) Dr Chris, handled some wannabe's junk when talking about a medical problem. This, however, is a different kettle of fish...
It's not unknown for companies to levy a much higher rate of interest, as high as ver 1,000% but more usually 259%
99% seems mild by comparison.
Luckily, I've never needed to have credit and nor did my parents.
It's readily available, like a shark with it's jaws wide open, waiting for the unfortunate or the gullible to enter it's maw.
I did think of 'investing' in peer to peer lending at one time but I like rock solid certainty and there are no guarantees.
Rochdale - Grooming gang leader released from jail today



