I've got about half a dozen jersey/bib short kits from
Ebay retailers in China. You've all seen them and no doubt wondered. I've also bought some direct through the Alibaba website listings. I can ride all day long in them and never get the slightest chaffing, and they last ages. The best ones either have a Monton logo in the photo or an orange pad in the shorts. At 30-35 quid for a set you really can't go wrong.
You need to use the size charts they provide in the listings with a degree of honesty - ie if you're really 80kg, don't buy a kit that's for someone of 75kg. As a rule, consider going up a size if you're close to the upper limit. I buy large
Altura/Endura and just manage large in the Ebay stuff.
No doubt some folks have their eyes rolling like bu99ery at all this but all I can say is, if you ain't tried 'em, you don't know. My mate has some Assos kit and even he concedes that the ChingChongs are good. The only stuff to avoid is the jersey/long combos that are not thermal ie spring/autumn kits. For some bizarre reason, the longs are made of lightweight material like the shorts and it just doesn't work. They go all baggy round the ass. The thermal jersey/long kits are brilliant. I have two sets that I wear in winter and they are really warm.
You'll see some people say the kits are counterfeit or knock-off. I'm not too sure either are necessarily true. They do use team logos/designs but the garment labelling doesn't claim to be from a known manufacturer so it probably comes down to copyright law on the logos etc. and the fact that Ebay allow the listings suggest there is not a problem.
As for refunds or replacements. I've once had to change a size, and that went with no problem. I also had some go missing in the post and got a refund within 1 hour (yes, 1 hour) of emailing the seller.