megsApp - blatant dishonesty

I use their sims for data, they don't give you the option of barring incoming calls, or blocking them.

I contacted them, and after wasting my time for ages - they told me they barred all incoming calls.

A few days latter, incoming spam calls.

I contacted them again - now - even when I quoted that they said they'd done it, they tell me its not possible and I must try use some third party apps to block the tons of incoming spam calls on their number.

1. How in this day and age is it acceptable for the support agents to blatantly lie? 2. Why waste my time?