You shouldn't be looking for packages but instructions on how to use OpenVPN with their service. If they do not support OpenVPN I would look for a different VPN Service. Many VPN Service providers support the OpenVPN format and give instructions.
We also have instructions on this forum how to use this service. There are lots of VPN Service provides. And most of them them support OpenVPN. Do not waste time with the providers that do not support OpenVPN. I would also not waste time with providers that do not provide instructions on how to use their service with OpenVPN.