Don't use if you want cashback
I have bought 3 items from ProbikeKit.
The service regarding delivery speed etc was excellent. The service re cashback is appalling. Of the three orders only one of them was honoured for £2 worth of cashbash. The other two orders which totalled £28 worth of cashback were both declined under spurious reasons such as "order cancelled" even though the orders were fulfilled and I got the goods. Strange that!
Quidco haven't covered themselves in glory either. Even though I have provided copies of the order confirmations, the dispatch and delivery notes and offered to send pictures of the goods to prove that I got them, Quidco refuse to challenge stating "the retailer assures us these orders were cancelled".
If you want cashback try another bike company as without the cashback I foolishly assumed would be paid they are not that price competitive. Avoid!