Hi Peter, currently we are busy doing the capped plans with ability to topup. Topup will be online using sagepay and payfast, also administrator will be able to topup the client or the topup can be charged automatically in next invoice.
All these features will come in 1.3 version. We have a delay at the moment with the lauch, mainly because of the Top up solution. But I’m pretty sure that in few weeks it will be finally live