Not sure if anyone else is experiencing this but I've been short changed on cashback a couple of times through the rebate scheme. There are a couple of instances where I should have received 10% and only received 2% (see image linked below).
Support were prompt to reply and have said they are looking into it, and that it's a known issue. Just wanted to make you all aware to keep an eye on your transactions and cashback. Disappointing to have to monitor it.