Family Allowance NOT working

Family Allowance is NOT working. I've been using this block feature for almost a decade (Sprint years included) The feature was finally working properly for a bit but now it isn't. I called and spent hours on the phone with multiple people and went into the store. The store rep said it's the feature and that they can't do anything so to call and explain it to T Mobile - which I did and have been doing. There is a gentleman who has been calling me back weekly to see if anything changes but there isn't any change. There really isn't even any point for him to call because he isn't doing anything. Nothing is fixed. The calls will be blocked but not the text messages. Text messages to/from blocked numbers continue to go through yet the calls are, in fact, blocked. I'm done listening to the "its because of the towers or its because of the type of phone or it's because of the settings on the phone." The feature doesn't work and it needs to be fixed. Oh and another thing that happens when there are any numbers on the not allowed list for whatever reasons it then does not allow for any messages to come in through group messages (message threads that I am included in with other people) I've turn off and reset my phone and pushed this button and that button and everything else that has been asked of me and NOT A THING HAS CHANGES BECAUSE THE FEATURE IS NOT WORKING PROPERLY AND NEEDS TO BE FIXED. One day everything was working and now it isn't. It's the feature so please fix it.