Switch ISP's. AND LISTEN stay away from all the ADSL Fibre Providers, Stay away from Vodacom and MTN.
If there is a threshold on your fibre package, not matter how big or small, stay away.
If they shape your fibre, stay away
If they offer a capped package, stay away.
Learn now, listen and move.
So basically the product you are describing being offered on Openserve is like R2000 + for 100Mbps. Uhm not always possible.