888sport belongs to 888.com, one of largest gaming companies, ranked 1,077 on Alexa. They pay you! however small betting limits exists what I know. Payments are not a problem here.
888Sport(SBR Rated B) is serviced by BlueSquare (SBR rating B+) and uses the orbis software. So to answer your question... Yes, they do pay but keep in mind that its your typical Euro bookie which they will limit you rather quickly.