I'm sure their T&Cs said they'd use 30% for RRP and they kindly gave you the option to opt out of that.. They'd still take the 30% but you could ask it wasn't invested in their RRP if you wanted..
So now it's configurable, can you change your terms and conditions of a contract without asking your customers to accept it? I'm genuinely curious. (Not so much about this, just in general)

Thanks