I am integrating Marketpress and Appointments+, but the currency doesn't change in Appointments

hi there,

OK - so i'm using a gateway, called payfast, so i can trade in ZAR in marketpress.
then - i want to integrate appointments+ to use marketpress' gateways, which seems fair.

so i set marketpress' currency to ZAR.
and i set marketpress' gateway to Payfast.

so far so good.

when i set up the services, the services are by default listing in USD.

so -

how do i get past that?

How do i get the services charged in ZAR, like the shop's currency is set?

Thanks.