PM should, as part of the option, to permit PM Clients to, lets say that they don't use CC to pay for plan renewal and instead use voucher, to stop renewal payment, so like if they're on vacation, not having $$$ that they have in PM account system automatically renew plan, as it maybe considered a waste of $$$ when they're not using it.
Just my opinion, to help PM become better, and also as a means without having to use that suspend phone if lost/stolen as I would think that was NOT designed for that kind of action, and if I am not mistaken, even if enabled $$$ would still be deducted