Can anyone give an example of a credit card that has an absolutely abysmal interest rate? Are there cards upwards of 50%?

So far I haven't experienced such interest rate. My bank provided me with excellent banking facilities over the 5 years. Absolutely abysmal phone support and moderate interest rate.

I have seen some cards with upwards of 30% interest rates and figured that it couldn't get much worse then that. But, I am sure that it is possible that even worse cards exist.

Wow, I don't think I'd even heard of rates as high as 30%.

I think the worst rates tend to be through stores that let you buy things through finance companies. I'd expect that department stores and furniture stores may be examples of this.