No specified terms

I purchased a mobile SIM, R57 for 1gig, with a 3 month rol***** last month. Tested it and it worked fine. I received a few emails requesting payment writhing that same month even before receiving the SIM but I ignored them because I'd already paid and they wouldn't have sent it otherwise.

I haven't used it again until now and should have the bulk of my data still available. They've suspended my service due to non payment.

Non payment for what? Nowhere on the mobile data page when signing up does it say that it's a recurring monthly charge or for any specific period. So anyone signing up is not agreeing to any contract terms except paying for the month's data they select.

Please enable my sim as I paid my R57 for the alotted 1gig as I still have around a month and a half left of the rol***** period.

Thanks