Should I tell them?

I went to Verizon today due to the fact that my phone slowly started to randomly shut off, and it became a problem when it did it 3 times in under an hour today, they are ordering me a new phone tomorrow, but with my past two phones my phone will not get calls, get texts, other phones won’t get my texts, should i tell them before i get a new phone? It’s been a real problem with the fact that someone was trying to get a hold of me for two days & i didn’t get any texts, calls, or voice mails when i was in all different locations. So, should i mention it? Or is it something that just can’t be fixed?