Does anyone know where I can take Dutch lessons? (Antwerp)

I took two years of Dutch/Flemish classes when I came to Belgium but now my Dutch is getting rusty and I need to practice speaking. I work in Brussels so the evening language courses don't fit my schedule.

Does anyone know of any tutors who work evenings and/or weekends? Or by some miracle, a language school that offers classes on Saturdays?

Thanks a lot. I would really appreciate hearing about others experience.