Flybuys and Rewards cards

Does anybody use these services? We've managed to get some huge savings lately for doing nothing, they've stuffed up a couple of times too.
When we've done what is required to snare a bonus we ring them up the next day to tell them that they haven't honoured it yet, they do it manually and then a few days later it comes through in it's natural progression, it's been pretty handy.
i'm not sure which one is best though.
When we've done what is required to snare a bonus we ring them up the next day to tell them that they haven't honoured it yet, they do it manually and then a few days later it comes through in it's natural progression, it's been pretty handy.
i'm not sure which one is best though.