Mwebs service

I was charged double for my data and router. I have sent emails and no replies. The phones just ring. I was charged multiple times for separate invoices in one month. They charged me R771 for 40 gigs of data. Either soneone isn't doing their job or they don't know what they're doing. The website said R275 per month for 30 gigs. I topped up a further 10 gigs for R150. I am not pleased with this company.