Keep getting text from 620-0

[mckee2]

Should I just block them? What are they? I've got 5 in the last day!

[vzw_customer_support]

Hi Mckee2,

Oh no! That's not good. Is there an option to unsubscribe at the bottom of this message? When did the messages start? What device do you have?

Thanks,
PamelaF_VZW
Tweet us @vzwsupport

[mckee2]

Started July 19. Got 3 again on the 28th and another on the 29th. The message says

//F1. TYPE=SAS;UI=1;CONT=38,4,0;

SHOULD I BLOCK IT???