@chkdsk We got them from Degros, specifically the Romed brand. No complaints about the purchasing/delivery process, but we did get a batch of questionable (slightly bent) needles at one point. Haven't gotten around to returning it yet, so no data on the returns process unfortunately.
As a more general note though, any online shop that's been around for a while in NL is likely to be trustworthy (and for consumer-focused shops, the Thuiswinkel Waarborg is helpful). The online shop ecosystem here is relatively healthy.