annually i pay rm 30 for the 1 year validity
then buy internet --normally once a year
i dont pay for anything else

You need to pay a separate RM30 to buy one year validity for the plan. That is just for validity, no call or data quota given. And no, it is not for one year of internet usage. Internet quota you have to buy separately. But it is cheap and comparable to what One XOX can offer. I think it is 5GB for RM10 and valid for 1 year. There are a few quota to choose from.

To fully utilize that RM30, you can first top up RM30 to get 1 month validity, then at the end of 1 month, spend the credit in your account balance to buy 1 year worth of validity. But you have to do it at the last moment of the end of 1 month because Hotlink does not add 1 year to your current end of validity date. It will set the expiry date in relation to the date you buy that validity package.

For example, if you top up RM30 today, your validity end 1 month from now. But if you immediately spend the credit and buy 1 year validity package, then your validity will end 1 year from now, effectively gives you 12 months of validity. However, if you wait until 1 month from now, only then spend the credit to buy 1 year validity, then the validity will end 1 year from that date. Effectively, that gives you 13 months of validity by spending only RM30 today.

But you need to buy the correct Hotlink package to have this option. Not all Hotlink package has such option.