It is the second day that they do the same to me, ...

It is the second day that they do the same to me, they send me a computerized email and SMS saying; "Recipient absent, could not be delivered" when it is not true, both yesterday and today I was at home. I send them an email to tell them what happened, and they don't even bother to answer!
In today's message he told me that he was absent at 9:49 p.m., when we all know that at that time they no longer deliver, he was still at home.
Based on my experience, I don't recommend it.